I use 2 Picobeams as a part of my light setup for some small EDM events. The 30W light output is quite good, and compared to the price I must say it is very good. And yes, you can get more powerful lights, but then u have to pay way more.
The lights have worked very well for me so far. No troubble at all.
My points given are compared to the very good price for this light. Good choice, thinking of buying more of them myself.