Use once, close the mouthpiece to shut it off, put it away and it cools down. On next use, mouthpiece is tacky and doesn't disengage the slide-lock, meaning that you depress it, and it won't pop up. Pressing MP down and attempting to physically lift it out fails, because of the design of the slide-lock. It will only open if you press it in over and over, loosening the tackiness on the slide lock eventually and it will pop up for you.
Spoke to a few Ploom representatives, a few things in the discussion shocked me - I'll get into that in a sec. First they suggested I needed to thoroughly clean the unit with ISO. I expressed that I had done this many times, and it was only a temporary solution, as the next use would do it again. They then suggested I had a "faulty" mouthpiece, which turns out included the first several hundred units that shipped. They sent me a new one.
New one seemed to behave only slightly better, however it soon repeated the problem I originally had. Also upon inspecting both MP's very closely, I could not determine any difference, although now it seems to be reported from a few sources, that the initial MP did have a flaw in them and the new ones are supposed to be different in -some- way.
If anyone can confirm I'd appreciate.
So now I've figured out that the only way to avoid it is to religiously clean the MP and unit after every single use. Or I can play MP pressing game for 5-15 minutes.
Now lets say I had the MP pop up as intended. 50% of the time it goes into heating mode and begins warming up. 50% of the time the led goes solid red and no heating. Must slightly depress MP to align the sensor, unit warms up, then I can let go of MP and it will work as intended.
After all the cleaning (using ISO as they recommend) I one day found that the hard white temperature button had seized. It had no wiggle room (originally it had a slight "float" to it). Pressing it HARD did nothing, stuck in medium heat. Talked to Ploom again, and they told me to go easy on the ISO, and if I can't free the button to send it in to them. I'm really against putting this thing in the mail, so I finally took an upside down nail, put the head of it over the button and smacked it with a wrench. Loud crack, and now the button is free, and it works.
Extremely tight draw if you fill the oven packed completely. I found filling full but very loose, then using the oven lid sideways to pack in in TIGHT works best. Leaves 3/4 of the chamber empty though. If draw is too tight you can tip in one side of the oven lid slightly to open a small air path.
That's about it for my gripes with the unit itself.
The issue with CS was this...
I used the online chat, and the person who popped in named himself Oompa. A different conversation a bit later and it was a person named Loompa. I don't think this is a child's market, and was just a bit offed when I saw them using references to an obvious child movie.
Overall I think the unit is a bit naggy, but it performs well if you're meticulous about cleaning it and you have some patience and a little tech knowledge.
The whole time I had my issues, Ploom did assure me they would replace the unit if they found it defective, I would only have to send it back to them. I declined their offer.
My point of view, is not that I have a defective unit, but moreso, they failed to field test the unit enough while in the R&D stages to see the problems that residue buildup causes, and just quirks in general that shouldn't exist.
I'm confident that if I had a completely new unit today I would have the same issues.
Also I declined the replacement offer because I refuse to send the unit through the mail after being used.
I vape it for maybe 5 mins per oven load. I'll usually get it up to temp in medium, take a couple vapes, then finish it in high. I don't get black material, although if it was on the dry side to begin with, as opposed to sticky, it does seem to end up a bit more cooked. I do get pretty dark residue on the oven lid.
Let me start by stating how often I use the Pax. Everyday...pretty much at all hours. Each session about 15 mins. 10-15 sessions a day. On Red all the time. I go through a full charge and a half a day. Bud is ground and packed with hardly any force (meaning not too much or too tight- as it will cause air flow problems).
Now the biggest solution to "non-release of mouthpiece due to residue" is quite genius and I cant take credit for it as i read it on a forum some time ago: CHARGE IT STANDING UP. -the way its built it has the charger as the stand. the problem with that is that it spends all night with the residue slipping towards the mouthpiece, since the heat produced from charging is enough for it to melt. Stand the Pax, mouthpiece up, and place the charger on top of it. In one weeks time you'll encounter this problem maybe 10% of the time as opposed the the frustrating 90%.
As far as cleaning, this might surprise some of you but I only clean it every week and at most week and a half. ^above said solution has really cut down on cleaning. Am I loosing some product intake by not doing so everyday like i used to. Yes, I'm sure- but its not worth the hassle. One full oven session is more than enough for one person... or at least me, even with slight airflow loss. My secret weapon is Clorox Disinfecting Wipes- i now realize that they are ammonia based not isopropol so I'm sure I've broken my warranty but ef it- again not worth the hassle, i've gotten way more than $250 worth of use out of it already and its not showing any signs of damage or wear so... All it takes is about five wipes and your finger nail for the most part. (I also use a piece of thick wire to clean it- but thats for some other day.)
When I'm traveling I try to keep it upright as well. If I ever have the reverse problem: mouthpiece wont stay in "off" position, I lick my thumb and pointer finger and moisten the metal stem on mouthpiece. Once or twice usually has the issue resolved.
My first forum for the Pax. I love this device. Makes me sad when others dont enjoy it as much as i do.