I use a Nova System in the loop of my Triple Rec and IIC+. I didn't want to use rack gear, and the Nova's footprint is smaller than a typical multi-fx floorboad so it fits on my pedalboard with my other pedals (OD, tuner, wah). I have an amp gizmo.
Since I only use it for fx, I don't mind that it doesn't do 4CM. What I like best about it is the footswitch mode where three switches choose different patches, four control on/off for pitch, mod, delay, boost, and one sets tap tempo. This allows me to switch between clean/rhythm/lead tones, and also to toggle effects on/off individually if needed as well.
As for the effects, the reverb and delay are great. The pitch effects also track well and sound good, although I mostly use it to add slightly detuned voices (kind of a non-swirling chorus). I have been somewhat unhappy with some of the modulation effects (to my surprise, given TC's reputation)... particularly the flanger. Lastly, I don't use the boost, because it takes some of the life out of my signal when disengaged (it works by attenuating your signal when off, but I get this problem even if I boost my output to compensate, so I've concluded that at least in my rig, the boost sucks tone a little).
Overall, it's a pretty nice little package if you don't want to use rack gear. Buy one from somewhere with a good return policy and let your ears decide.