I purchased the NEJE A40640, and I very happy with it. If you search the forum for “@robertbu gifts,” you can see what I made to give out at Christmas. Most of the gifts were cut from 5.2mm plywood, and I’m sure I can cut thicker (at slower speeds and/or more passes). There are many people on this forum purchasing this laser module. David has recently upgraded and has some of his cutting can be found here, and he is beginning to dial in engraving, and you can see some of his work in this post.
I’ve never owned another laser module or machine, so I don’t have anything to compare it to, but based on videos, I expect it is still significantly weaker than a CO2 laser, but it gets the job done for a hobbyist.