- For how long have you been using it?
Unusable! ... Bad luck! It's been 2 times that to buy one qques month interval to test and:
. 1 was only red (not green or blue)!
. the second no green!
- What thing do you like most/least about it?
Unreliable! DMX dipswitch selector.
- Did you try many other models before getting this one?
Led by the 56 of the same make are correct.
- What is your opinion about the value for the price?
It does not work.
- Knowing what you know now, would you make the same choice? ...
Not ready to retry this purchase a 3rd time ... Yet the principle we are interested.
It's sad to bring to market a beta version that does not work!

We just received these, cheaper, and the test is conclusive so far:
http://www.musicstore.com/fr_FR/FRF/lightmaXX-LED-PAR-56-Tri-Led-High-Power-15x-3-Watt-PMW-black/art-LIG0005742-000
(See review: https://changeur-de-couleurs.lightmaxx.audiofanzine.com/produits/avis/index, ProductID, 146201, mao, led_par56_15x3w.html ( https://changeur-de-couleurs.lightmaxx.audiofanzine.com/produits/avis/index,idproduit,146201,mao,led_par56_15x3w.html ) on this site).