I play an electric guitar, and have collected quite a dew pedals over the years. This however is my first octaver. With the research I was able to do around the web - it seemed like a great option and it was on sale, so I grabbed it.
When I got it - I was very happy with how it tracks, buffer quality (since I had to stick this infront of my dirt for better sound), and all the options of dialing in just the right amount of +oct, -oct, quint and dry signal. The controls are dead simple.
Soundwise it is very pleasant - I was able to dial cool bass sound on it and all the other trippy combos. You can get some epic black hole sounds out of it, if your setup allows it.
I was unable to notice any sound degradation from the pedal sitting in the chain, so as mentioned, the buffer seems of good quality.
The pedal looks and feels sturdy and trippy.
Verdict: I can only recommend getting this one!