I like the game's theme & especially the remix part, but the combat is sometimes really annoying. Dodging isn't invincible and I often got hit even when I was already dodging, which killed me many times. I too think the freelow combat from Batman Arhkam series is a lot better.
After getting all achievements I'll trade it. I don't regret buying it but also don't plan on keeping it.
All my played games are exactly 1000G.
10000G for 10 games on 7/12/2010
20000G for 20 games on 9/8/2011
30000G for 30 games on 6/5/2012
40000G for 40 games on 24/9/2012
50000G for 50 games on 19/5/2013
60000G for 60 games on 12/1/2014