I have a possible opportunity to pick up a few of these at a very low price from someone who got them a long time ago in a trade and hasn't used them. I am particularly interested in the Spectron, Formantz and Vertigo that are being sold. It is difficult to find info on these (released in 2002, now discontinued)... Are they cool units? They've got to be pretty fun I would think for the price, maybe they weren't a big hit in sales. I would love a good synth pedal, a filter pedal would be great and I could maybe use the Leslie pedal to imitate the treble horn my Leslie cabinet does not have, anyway, they would all be fun at home I'm sure and run in stereo. I believe from what I've read that you can use these in a normal guitar setup, is this correct? I'm looking at 3, they each take up 1/3 a rack space, I wouldn't be completely opposed to adding that to a setup or at least at home, which would be great, too. Any input on these units?