RE: Nice beginner planes.
RCKen has a thread made specifically to help answer this question. Check it out and see if it helps some..
my $.02, the sig senior ( big plane, more of a floater though), the avistar (semi symetric wing gives you basic aerobatics), and the arrow (just a nice plane)
The PTS is a nice plane, and if you have a real good person to instruct you and would not be heartbroken if somethign happened, then it might be for you. You must remember that it is still a warbird and warbirds are not, by design, good trainers. The mods that are shipped with it make it fly better, but there is no exception then a traditional trainer.
Now, if you can spare the cash getting a high wing and the PTS is not a bad idea. Spend a few flights ont he high wing to get used to it, and then switch over.