What do you want or envisage engraving on?
Even 2W of Fiber Laser isn't much if you want to play on metal. Limited Bed size is maybe an issue.
Keystone Correction how is it and any fringing near the edges due to cheap optics pushed to their limits?
What software if any? Locked to Proprietary only, or compatibility with what, even worse Proprietary Cloud only or shudder app based
Lack of guards can be sorted without to much issue but left alone it is an issue.
For a bit of background watch a few of Russ's videos on a 20W Laser to see what you can and cannot do. Personally I wouldn't put my $ anywhere near the project until you get answers to some or better yet all of the above and even then I would likely pass.
If all you want to do is engrave on metal there is CO2 options for way less using products like Cermark or similar.