This is a rather nice boost to see Electro-Harmonix. Like all the SERIES "nano" pedals this is pretty miniscule, convenient storage for a little less switcher, I find myself already in the "miss" .. if the whole is robust trs, the knobs is fixed and the switch does its job.

UTILIZATION

I think it not be easier, like some MXR (a knob, a sxitch and that's it), it RULES the boost according to his desires and go.
I can not find the switch that was so noisy I tell the truth or not more than just rev my RAT2, so no problem of the APRS I hope ct re recording that he will not hear.

SOUND QUALITY

Place in the beginners string (before distortion) it saves gain and sustain which is quite handy for solos but unworkable in rytgmique as too rough right now. (You have chosen: boost the bottom for solos or a midday boost over PCHE). the end of the oak, it increases the volume (of distortion pedals in particular) rather fawn consquente so use with prcaution. I use it primarily to switch between clean and well clear (with telecaster) a lightweight crunch that makes me almost a 4th channel. In disto's nice to sustain (my TV does not become an LP but not the fact) and add the feedback on what should scne her little effect.
I rditerais me on my next concert to see if it is reliable scne.

EDIT: here I could test it on scne is really convenient, it allows for a feedback control of the two piece is a small effect, and very practical to be heard during solos!

OVERALL OPINION

It's a little one pedals going around, not really necessary but a plus in the chain that helps to overcome my lack of saturation in single and have almost a crunch on the clean channel.
I do not see too much of intrt dpenser more for this type of pedals, since it just requires booster remaining transparent trs what it does well.