There are a few things I dislike about
Guitar Pro. Firstly, I cannot figure out how to get different length notes on the same beat. Whenever I try, they tie and chose the shorter time. Secondly, the soundbanks they offer don't sound great and shouldn't be considered anything more than a bonus in the purchase.
I do like it's ability to chose sections and repeat them at varying times (eg: start at 1/4 speed, then play back at 1/2 and then 3/4, etc...), and the midi import works pretty well on it. That's a nice feature when you can't find sheet music but can find an accurate midi file. It does have a habit of messing up the timing when importing a text tab, and will not play the entire piece, if at all.
I paid full price for it about a 10 months ago, and I barely use it now. Free tabs you can get online are mostly incorrect or incomplete. I've been buying sheet music instead and concentrating on sight reading.