I do and heres what I think::
GGTS - Things I like and dislike about this mod
First off I will start with the things I like about it and finish off with what I dislike and any recommendations that I have.
I was originally attracted to the GGTS because of the design of it w/the engraving, fancy button and high shine.
With further research I found that it had vent holes as standard. This is a must for mods, especially tube mods. It also has an adjustable draw w/the ability to blow out your atty without removing it from the mod. This is just pure genius IMO. I have a tendancy to over drip sometimes and this makes it very easy. It would be a real pain to have to unscrew everything just to blow out the atty. Its a pain to unscrew and remove an atty from my other devices as it is.. Also has a locking button and you can unscrew the telescope a bit for safety in transporting.
It is made to accept all attys. It has a 4 in 1 connector to use 501, 306, 901, 801 and 808d type atomizers and cartomizers. To use the 801 though, you must get an 801 adjustable draw cap. To use a 901 you must screw on one of the two included thread adapters.
Vape quality is excellent. For some reason my attys perform better on this. I found a big difference trying out the Ikenvape Mini 801 2.0
I never liked that atty, it did not taste good on my other mods. I am a LR 1.5 user but then I tried it on this as a lark and found it did vape much better - In fact I like it now. YMMV
Another great feature is that it has telescoping ability to accept an array of different battery configurations, for 3.7v, 6v and 7.4v For example:
Single Batteries - 14500,14650,CR2,CR123A,16340.17340,17500,17670,18350,18500 and 18650
Double Batteries - 15270,16340,17340,14500,CR123A,CR2 and 18650. The 18650 and 14500 requires an additonal purchase of an extension sleeve.
I ask you, what other all mechanical mod has this ability??
A tank system is also available to buy if you want to automatically juice feed your atty or cartomizer. VV add on coming in 2011.
Overall: Excellent design and vape quality - a solid 10 out of 10 - I would not hesitate to recommend this to anyone.
Now for what I dislike:
Nothing - Zero - It's an amazing device
My recommendations:
Since this is an advanced user device, it would be greatly beneficial to read the online user manual and watch all the videos available.