How long have you use it?

3 months

What is so special that you like most and least?

To finish I find it quite as I myself installed the kit offers B. Cord.
Very easy to do, the sound is very clear and detailed thanks to the compression of 10. The SM 212 offers good small bass above 55 Hz and a very good presence in the mid-bass.
Start with an attractive return to 98 dB
A power amplifier with an example Elyon 220 but not more than 250 W-RMS without typing in the bass.
Used in bi-amplification cut from 110 hz is very good.

How would you rate the quality / price?

It is very bon.La quality is really there for the price, it's serious.

With experience, you do again this choice? ...

Smoothly and I hesitate even to build another pair for my installation.