Spark Booster : Whoa! A very useful tool

I was looking for something to go at the end of my pedals, for when I wanted a bit more of a volume boost. I wasn't initially looking to affect the tone at all, and considered the smaller, stripped down one of these.

However, the extra tonal switches and knobs piqued my curiousity and I ordered this one.

It sounds really good, and does a lot of things. You can use it as an overdrive, absolutely - and there was a time this would have been exactly the sound I was looking for.

I use it now as a ridiculous dose of clean boost for certain parts, and it works wonderfully for that. The tonal varieties are useful here too, more than I expected. The bass, treble and mid shift frequencies and curves are just right to my ear.

The one downside is that it is bigger than I thought, something about the shape and size takes up more real estate than I would like. That has a lot to do with my specific old pedalboard which has its quirks with its size. So its not really a bad point, but something to look out for.