I have the MV-8800 and it's not hard to use at all. If you require a short learning curve have you ever considered an SU-700 by Yamaha? Super easy to use, alot cheaper on ebay, does anything the MV-88 can do, except easier and does not have a built in HD which is great. On the 700, you'll need the SCSI board and then you can add a HD... I also have the I/O board with 6 outputs analog for total of 8 outs which helps a lot when tracking to P.C. or mutlitrac recorder, plus digital and optical I/O... The knobs on each track react to whatever function button you press, so if it's volume, effects, cutoff resonance, EQ, LFO, whatever... It also has a handy ribbon controller which you can use for any function you assign to it, and it can even be set to be used as a sample scratch and it scratches samps just like vinyl... had mine since 1999, and although I use the MV-88 a lot now, the SU700 is still a dream to use over the MV. but they both give me different character to my music when using one or the other, so I like them both.. And that's why I could never sell this unit.
Here's a link to some dude using one on youtube. Don't look at what he's making, look at what he is doing and picture whatever it is you would do on there..
http://www.youtube.com/watch?v=VgltJC2AlBk&feature=related
someone else
http://www.youtube.com/watch?v=6Xl74yfQJwU&feature=related
What also helps the 700 a lot are scene buttons. You can set the song to have all the drums to mute on the first scene then unmute on the second. change effects on the third scene, change the sequence pattern on the next etc. and you can record all the scenes to arrange you song easily...
an idea how scenes work..
http://www.youtube.com/watch?v=rrNJ-3txM7k&feature=related
whatever you use, nothing will ever be this easy.. totally underated machine because of the MPC hype that was goin on in those days. Don't get me wrong the MPC is great but the SU-700 does **everything** MPC or MV88 does but Waaaay easier... this was yamaha's "sliced bread" invention..
F.A.Q. PDF.
https://www.yamaha.com/yamahavgn/Documents/KeyboardsDMI/su700.pdf