is it comparable with FL?
In some ways yes, and in some ways no. Lol. Maschine is basically an MPC controller, because in order to use it you have to plug it in to the computer so it can communicate with the software.
Think of it like you got an mpc pad to use with fl studio. I used to use FL way back in the day then made the switch to Maschine just because i got tired of clicking away on the keyboard and mouse all the time. Maschine is alot more "hands on". But its give and take. Because I miss gross beat from FL studio....
...but i don't miss spending 10 minutes arranging my hi-hat rolls or drum patterns. I'm in the process of uploading some videos of me using mine. But here's a quick video I made last night.