So basically a combination of the previous two answers. Max sampling length directly is 33 seconds and the max sample length that can be used in a project when imported (but only one sample in this example) is whatever fits into the 64MB limit with 16-bit, 48kHz mono WAV files.
I think this is around 11 mins iirc, which can of course be shared between multiple samples.
Alternatives: Octatrack, MPC, Blackbox, etc etc