I was very nervous ordering this laser. The information in the pictures and descriptions varies wildly, and can be very contradictory. That's why I'm writing this review: to put your mind at ease! Firstly: the controller. You'll see a TopWisdom controller in the pictures and in the specifications, but in the description you'll read that it is a Ruida controller. Well, I took a chance, and was very pleased to find a Ruida controller on my unit, that works just as well as you could expect. I'm so confused as to why their listing shows different controllers, and all that I can surmise is that they have units with both controllers, and they're hedging their bets. That's a shame. I feel like I got my money's worth just by getting the better controller. You'll also confusingly read that the machine does not have Z-axis lifting. It does. It works well. Why does the ad say it doesn't? I don't know, and it can't help sales. My mirrors were perfectly aligned, and needed no adjustment. The crate was in perfect condition, as was the machine inside. I will never use the water pump or blower that came with the machine, as I've opted to install a water chiller and fume extractor. I'm sure those components are fine though. My pictures of the machine include mods I've made, including adding a Lightburn camera, and an ammeter. They don't come with the machine; don't expect them to come with yours. I am totally happy with the machine that I've received, and see no reason why you wouldn't be as well!