Has anybody tried the Keeley Bubbletron?

Beef

Frank Zappa is my guitar idol, and apparently this pedal is inspired by some of his sounds. Not actively seeking to sound like Zappa by any means, but I do love a lot of the tones he got. Plus I've been wanting to get an envelope filter for ages now and I just stumbled across this one. 

V tempted, but it's certainly not cheap compared to some that I've looked at. Also wary of 'multi-effects' pedals like this; is it doing a half-arsed job at three effects instead of an excellent take on one?

I think it's fairly new so I'm doubtful, but I'm curious if any of you gents have had any experience with this one?