The T-Hawk seat does go forwards and backwards (just showing off if you ask me), which is great if you are the same height as me. I flew with a friend in a C152 - luckily he was doing the flying as I was entirely consumed with keeping my feet off the pedals. It really is a tight fit for some people. I was also told by someone that "if you can fly a tomahawk, you can fly anything". I can reveal, having flown something else, that this is nonsense. Compared to the 172 I moved on to, the Tomahawk was a doddle to fly.
Enjoy it, whichever you choose!
Ginge