The sound is as great as bigger version's.
However, compared to the bigger version, mini HOF2 lacks stereo input/output, pre-delay long-short switch, and you have to reload toneprint each time you want to switch to another reverb sound.
Also, unlike bigger version, this doesn't come with usb connector.
Placement of mini-usb socket on the pedal is not the most convenient - right above power input.
It is nice though that they went with same sized knobs instead of one huge knob and two tiny ones like on some other mini pedals.