I am unfamiliar with the T-Rex specifically, but it looks to be an eGo-T clone based on what I'm seeing on Sharp Smoker. I had one of those for a while, it's certainly a good starter PV. I'm not sure what you want to know about quality? It's a good device and should last a while, and the tanks are pretty much no-fuss. A big downside to that style of tank, however (using a specific atomizer for the tank), is that those atties tend to be pretty good for about four or five days and then start to get tight and simply stop producing as much flavor. At a certain point (which tends to come much sooner than I'd like), it's like sucking molasses through a straw. You can remedy this some by washing the atomizers in pure grain alcohol or boiling water, but to be honest I think it's a flaw in the design.
Your kit appears to come with everything BUT the liquid. You will have to get some. It says so right on the Sharp Smoker page, "***Pick up a bottle of e-liquid to fill your nicotine cartridges with." By cartridge, I guess they mean tank. Other than the actual juice, though, it comes with two batteries, two atomizers, USB and wall charger and some tanks. That's pretty much all you need, however, I would recommend picking up some extra tanks and maybe some 510 low resistance Boge cartomizers. Cartomizers are pretty low fuss too, and I really think those atomizers your new e-cig comes with will be less-than statisfying (depending on how much you use them) sooner than later. YMMV.
So, get some juice and let us know if you have any more questions.
EDIT: Sharp Smoker appears to sell the eGo as well, so to be honest I'm not sure what's different about the T-Rex (if anything). It's definitely 510 compatible, like the eGo, looks like an eGo, has pretty much the same capacity battery... so yeah, the rest of my post still stands.
