I own this amp and have never regret buying it. Its exactly what I need. Enough power to crank out, light and mobile, lots of different effects, and easy to use. Depending on the size of the gig, it should have plenty of volume. Ive gotten a lot of "wows" out of it when the volume is cranked.

Im not really sure what you mean by compatible with other pedals. You can use whatever pedal you want, just only the Line 6 pedals plug directly into it I believe. I use a Morley Bad Horsie 2 wah pedal and a DigiTech RP100 effects processor with it.

You can get many different tones out of it. It comes with a lot of different presets that you can tweak. Should easily be able to keep up with a drummer.

I highly recommend it.