Hi jedi. I have the wk8 megastation not the se. They added the scsi interface, a sample from the pro2 piano and some other things to the se. I had the harmonizer replaced under warranty due to a chirping noise it was making along with the harmonies. The effect might have worked for some but it wasn't going anywhere for me.
As far as the construction goes, it has a very solid feel. It has a whole bunch of screws holding it together.
The keys feel almost semiweighted. Not reel spongy like some synths can be. It has after touch which I use on occasion with sax samples. The sequencer in it rocks. 250,000 note capacity down to event level editing it's a midi enthusiast dream machine. I used to do all my sequencing in cakewalk pro audio 9 and now much of what I do can be done through the wk8's sequencer. All in all I like the board a lot and you can always load in new sounds via it's sample playback capabilities. It will hold up to 40 megs of ram and playback akai, wave, aiff, and kurzweil samples. The onboard harmonizer is a little noisy for my tastes but usable for live work. Maybe someone has a deal on a digitech access or digitech vr. hmmm....