How long have you use it?

I have around 2 years. He served for two onstage orchestra. Well that was enough for that.
Now I use it for a small PA system that I put for rent.
What is so special that you like most and least?

Easy to use. Output Terminals + / - and Speakon.
For entries against only jack, too bad.
Have you tried many other models before buying it?

I know a lot of amp to use I wanted to do, I have not tried to like.
How would you rate the quality / price?

Correct ratio for entry.
Saturates very quickly with very low frequencies.
With experience, you do again this choice? ...

probably not,
but I remember that for the price, and infrequent use is fine ...