one thing i dont like about these forums, is that its very hard to get an honest objective opinion. a lot of sponsored people here, and even some salesman.
that said i dont own a tg. i did own a cv-r though. if thats any indication then the tg should be very reliable and easy to tune(I think this is what OS is most known for), but not the fastest around, probably more on the slow side. it should be a great motor for a beginner, if you are a beginner?