That's a really cool, creative use of that pedal.
I have the ME50B, which I bought when I was in this crazy two-bass band. I used the pitch shifter for a soloing channel. It sounds thin and weird by itself, but warms up nicely with reverb, as shown in the vid. I also liked putting the fuzz on with it too.
I've owned the pedal for about 5 or 6 years now. I would describe it as a good, not great, pedal. It does some things better than others. The muff fuzz model is reasonable, as is the Sansamp modeler. Most of the other dirt settings are pretty bad. The synths are for me unusable, as are the auto-wahs. The delays are good. The chorusing and flanging is acceptable. The compressor is a lot better than one might think, but can't touch my Markbass Compressore, so I rarely use it. I actually use the "slow gear" effect on some stuff. It's like an auto-volume-swell. The octaver tracks better than my OC2, but lacks the cojones. The pedal wah is so-so, but as little as I use that effect, it's good enough for me.
There is a short moment of silence when switching between patches that one needs to take into account if changing sounds mid-song.
I have a pedalboard full of effects now, but the ME50B is still a part of my signal chain, even if it gets used more as a tuner and volume pedal these days. It can still be great to have handy for finding some extreme, bizarre sounds.
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