I have a LOT of boost pedals (something like 8 by my last count). 
They are all different. The micro amp will not steer you wrong, I have become a big fan of MXR over the past year or so and now own 4 MXR pedals (script Phase 90, distortion+, micro flange, bass di+). 
Are you winding up your amp for leads, or just want more level and suststain with a bit of a level boost? 2 channel
amp or 1? Effects loop?
A boost in the effects loop can give you a massive level boost and is recommended if you are playing with high gain, as a boost will only add more distortion and no level boost into the front of the amp in that case. 
Another alternative, especially if you are using high gain, is the Heavy Electronics Descend. This is a volume attenuator. I have low wattage, single channel amps and I set them for my lead tone and then use the Descend to step the volume DOWN when I am not soloing.