I played around with a few of them just under 2 years ago.
I was looking for software that would play my freerolls for the first 2-4 hours while I slept, then when I woke up, I could play the game myself (most of the games like this started at like 4-5am in my timezone, and with these big freerolls, the first hour is full of crazies anyway so you just fold, fold, fold). I basically just wanted something to fold everything until I woke up, but obviously play as normal for the good hands- raise/bet/call for the hands that I would definitely play. I wanted it to be my "clone" and play exactly the same way I would play.
Out of all that I tested (about 6?) - they were all crap... except for one: Online Tournament Inspector Pro
This one you can configure to play exactly like you play. Or you can use their pre-made scripts, or you can purchase scripts that other people have already configured. Or a combination of both.
I didn't end up buying it (as a freeroll player at the time, I was too poor anyway lol.. ) but it really was cool software.
It was a little bit buggy when poker software does their updates (i.e. the programmer has to update the software to match the new poker software changes/updates, so for those first few days after an update, the software went a bit nuts (went ALLIN every single hand), so whenever there is an update, you'll want to wait until the developers have programmed it before you go into the bigger money - or just test it with freerolls/low MTT's so that you can test to make sure it isn't going nuts)
Great software, not sure if they still sell it or not, but since it was one of the better ones, with the higher price point, that they are probably still around.
It used to work with Party Poker & Poker Stars and a few others that I didn't use.
It didn't work with some that I used to use like 888 and Titan. And I'm not sure about FullTilt since that was down at the time of my trial with the software.