You will be more then happy with the device, as I said: I own it for about 3 weeks now and I compared it against my collection of 1-3,5W output "pointers". Also I own a few laser engravers (Laserpecker, Neje, Wainlux, Daja) with which I compared it. Here I think the optics will play a big role...
I bought this device about a month ago, and got it after about one week delivered to Vienna, Austria! I'm VERY happy with it, Optical Output with the lens provided ~6,2W, without lens ~7W.
Today I finished my first NUBM31T build, this array is insane...