How long have you use it?
I use it when there is it to set, for 2 years.

What is so special that you like most and least?
The +: There is no more, it is a normal speaker, nothing more.
Without the amplifier / filter d & b sound is horrible (which already shows the quality
less of the product), and with amplifier / filter, you have the sound of a mid-range speaker
in € 500/600
The -: far too expensive for what it is!

Have you tried many other models before buying it?
I have not acquired, and I do not my intention.
I work with Adamson, jbl, APG, Martin ... of concerts throughout Europe (from
West and East)
With a good old Martin LE400 get real serious, what the max is hard
to reproduce, whether or not the proc;
With APG DS15, get the "sound", a true, the max is far away, it is not
a fine example of sound. Out of highs does not mean they are
good!
etc ...

How would you rate the quality / price?
Very bad
At the same price, you have a CPA or a DS15S NEXO PS15 or 15 "adamson etc ... and this one is really in another court!
For tanks and fans, before bitching, so make the comparison and
you will understand ...

With experience, you do again this choice?
I would never make that choice.
For budgets as high, they are choosing my ears, not the hype

Note that I attribute to this forum is not 0 but 3 because it is true that it works well, it is reliable, it's just the price (€ 1,000 too much for the new, 600 € too used) which is absolutely not the product sold.
We will not speak of the time with flights provided is of 7mm, in other words they are quickly smashed ...