hmm, you're probably not going to like what I say, but I'll say it anyway,
If you get a GU, it will ride VERY differently to any trials bike you have ever had. It is very long and has a very high bb.
I don't know what level of riding you are at, but if you are just starting again I think the geo of the frame could hinder rather than help. It will be VERY rear wheel bias, you'll be suprised how easy it will be on the rear wheel (so if you live you're life on the rear wheel like a TGS rider you'll get on like a house on fire) but it will be comprimised on other aspects like two wheel balance and you'll have to adjust you're riding style otherwise you will struggle with sidehops, taps and gaps.
If you like to roll about, bunnyhop, spin and generally lark about and still be good for trials, I would reccommend a lower shorter bike. I know someone bad mouthed the Onza Spyo, but I think they are great, dead simple, good frame, good geo (for it purpose) and a good price.
that's my view anyway after 13 years of riding.