The order was very friendly and helpful. Unfortunately there were a few problems and delays with delivery. I finally received the laser. The laser was very well packaged and had no damage during shipping. Unfortunately, the insert was slightly bent, so that the limit switch was not activated and the insert was rubbing on the underside of the honeycomb. That shouldn't happen at this price and I would have liked a little more quality here. After testing for a week, the laser otherwise appears to be working without any problems. Only calibrating the camera with Light Burn didn't work and the response from support was just to use an older version of Light Burn. In general, communication with Light Burn is a bit bumpy and could definitely be improved. Unfortunately, the Air Assist sucks in some smoke inside the housing, which increases the contamination of the lens. A real compressor could definitely be installed here with air intake from outside the machine. Unfortunately there is no red dot laser installed to improve positioning. That's why I think it's a good machine but there's also room for improvement.

Ordered the RF laser in early June and received it in Miami in July. Customer service was excellent all the way through the process, including helping with a delivery problem from the local shipping company who became a problem as they would show up to deliver when I wasn't home and I never knew what day they were coming. Customer service at Gweikecloud helped resolve the issue.

This is my first Laser Engraver. I'm still learning to master it but have created some beautiful products. Customer service again is first class (a WhatsApp Group Chat) and they are fast to answer any and all questions.

Some in the USA might have reservations about ordering a laser from China, but I can say customer service has been better than many US companies. Don't let that keep you from considering this engraving machine.

This is excellent device I like rotary attachment to grave my Mead bottles. Bee sweet home

The laser is built very well and so far is very accurate. However, the focusing is complicated. You have to subtract the thickness of the material from some number then move focus the laser the difference. Using lightburn to get get to focus you need is not intuitive. So for 3mm plywood, I set the focus to 12.8. It would be nice if the controlling software did all the math for you. The laser should know how far away the lens is from the base, what the focus distance is from the lens to the material surface. I don’t know how far the focus distance is. Basically the focusing is complicated with this laser and not intuitive and how it translate into a focus distance in lightburn. It seem designed around using gweike material with a barcode on it, using it without that and lightburn is complicated to focus.

Second there is not much space for thicker material.

I don’t know why there is an exhaust fan i. the exhaust port since you hook up to an external fan anyways it seems redundant and an impediment to air flow.

It is a very good laser it just has some quirks particular in the focusing that make it more complicated then it needs to be when using it with lightburn.

Everything was as described on Sexy Cyborg youtube.
The benefit of the RF tube is no water to deal with and worry about freezing (I am in Maryland) but, cutting is more limited. Weight the pro's & cons of each for your use.
The only thing that would be nice a galv bed so you can use magnets to hold down material. The bed that shipped with the unit is Alum.
Have not used the Gweike Cloud since the location of the machine does not have internet.
Works great with Light Burn.