This is a great unit for running directly into a clean platform amp. When running it into an FRFR-speaker, it needs an IR-loader or an amp sim/DI-box; otherwise, it produces that very metallic sound (even though supposedly, the unit contains an amp sim on the headphones out).
The small footprint is really cool; tweaking the controls might necessitate a good pair of reading glasses for older players.
The lay-out and order of the effects and controls is very intuitive.
The switch from manual to preset operation is easy.
The tuner is easily activated and quite precise.
The effects, delay and reverb sections are versatile and very usable and the sound quality of those effects is ok.
The overdrive and distortion are quite tweakable and quite pleasant-sounding.
Soundwise, I do not like the on/off boost at all. It is pretty unusable as an overall volume boost for solos due to colloration, and as an pre-OD-boost, it clutters up the signal too much.
In my opinion, the unit doesn't play all that well with external pedals.
The power consumption (±300 mA) is so massive, that it doesn't work with additional pedals on standard multi-power supplies.
A real contender for the Tech-21 Fly Rig series or the NuX Cerberus, with some notable advantages in terms of features; soundwise, maybe not as strong as the aforementioned units.
A very cool unit for rehearsal purposes; maybe just a little too lightweight for real live-applications.