I bought this mainly for its harmony feature, however it's really an amazing unit. It has plenty of connections and options which is handy and it mounts directly on the mic stand (it's designed to sit on the table as well if you prefer that).
Pros:
- Packed with features
- Size
- Ease of use
- Amazing video manual on YouTube (playlist of short video tutorials explaining the features)
Cons:
- Lack of written manual in the box
I would recommend getting the foot switch (I bought with 3, but there is a 6 model) because it really allows to utilise the full power of the unit (e.g. switching between different harmonies mid song).
Initially I was a bit disappointed that I can't mute the guitar input when using it for harmony because I want to record just the voice and harmony, but not the guitar, however the video tutorial explained that you can do that using the aux input which is amazing. Furthermore the unit will use the aux input for harmony meaning you can connect your synth/keys or output from a mixer when recording vocals (or performing).
All in all very happy with my purchase. Highly recommended!