I bought this to sit in the effects loop of my EHX Superego.
The main reason for giving it only 3 stars is that there are 10 groups of effects and you can only have 1 effect from each group in a preset. Ideally, I would want to chain 2 or 3 modulation effects together.
You will need to read the instructions for this to get the most out of it
I also thought that it would be a bit smaller than it actually was.
I would have considered sending it back but it does offer me a lot of effects that I like but wouldn't necessarily buy. Oh and it was cheap. Only £80 on Amazon. you can't really go wrong there