So I got my Gpro about 6 months ago. at first it sucked ass, so I stopped. Just picked it up again and tried, this time however it is amazing! Some notes to make that i think will help others get the most outta ur pen: - Keep it on HOT (blue) setting - For whatever reason this was the biggest improvement, unsure if pen is giving improper temp(cheaper quality maybe?) and the hot setting is just getting it upto proper vape temp. Any other temp setting seems to taste like literal shit, which caused me to give up on this for awhile. after setting to high, the taste is almost gone and has a great hit - Uncap from thin/long part of mouth piece - the long small side will help so you wont snap/break the piece. - Make sure ur chamber is grounded small and full - (almost powder) to the top - this will ensure even burn. and makes your rips SO much better. This is Not an ad or endorsement, just someone who's a little baked and wanted to give some advice using ur Gpen, next to impossible to return these things or Sell. SO may as well get used to it!