I only use GG products. Like others on here I have spent tons of money on other mods and e-cigs. GG is the only line of products that I have found to be reliable. Not to mention the best customer service in the e-cig industry. Imeo will replace or fix any of his products.
I have 2 GGTS's, a UFS, an Odysseus, and a Penelope. I have a Proteus reserved and am waiting patiently for them to be ready. This is all that I currently own. I gave away all of my other stuff to people to try to help them to quit smoking and have let others use my GG's to show them the quality and overall amazingness (of course that is a word) of them.