- How long have you use it?
For more than six months, the current latest firmware (1.18).

- What is so special that you like most and least?
Most: hard drive storage! Or how easily find any song. (A condition of his well-tagged mp3, ID3v1 or ID3v2 with character limit)
Very pleasant to manipluler.
Quality effects, loops Smart smart.

The -:
Anecdotal keyboard (very limited use, no backlight.)
Unlike other comments, bug sometimes and unreliable!
Level bug: after several hours but holds, she may refuse to start up the pieces. Need to stop / restart the plate in the heat of the moment ...
The fader start / stop kidding, without the use of turntables and stops without warning. To disable (like all unused options) and more problems.
One of them has already started in 30 minutes (against usual 30sec), whereas they are always properly shut down.
Reliability level: currently one of the pieces cut for reading. Not yet resolved, probably a mechanical problem with the board. EDIT: I opened, I noticed nothing unusual, I'm screwed, closing, and ... it works correctly again ^ ^
Basically, every evening his problem ...

- Have you tried many other models before buying it?
Some models low / mid-range.

- How would you rate the quality / price?
At first glance, they are terrible.
But to make "white" in the evening, just enough readers without shock.

- With experience, you do again this choice? ...
Not ...