I'm sorry I wasn't quicker to respond when I offered my help!
That GGTS in post #6 has an 18650 size battery in it (either an 18650 or 2x 3.2V batts). I think that because that is the size my GGTS (w/ that battery combo) looks like with the UFS (tank on top).
You asked if I had any dislikes... I really can't say I do... The thing that comes to my mind is price; however, you really get what you pay for. The maker of the GG's, Imeo, just revealed his new version of the iAtty today. It looks amazing. And soon a VV add-on will come that will attach to your GGTS. The UFS is probably the best tank out there -- controls both the air flow and juice flow.
They are very well made, and the community is great. Even with just a regular atomizer, you can control the air flow. So if you like a tight draw, you can make it happen regardless of the atty you use. If you like a looser draw, then don't close the air control ring.
Very well thought-out products. I recommend them highly.