Here is my view on this subject.
I have owned Universal machine and had no issues with it performance wise but it was so painfully slow. For that reason I got Trotec Speedy 300 for my needs (best move I made). I also get local support for parts and answers if required.
90% of my work is raster engraving and speed was needed to get the orders quickly. I own Xenetech rotary engravers and could have gone with their laser as speed is on level with Trotec but support was from USA (some other issues there).
If I would go with Chinese laser of any sort it must have a local support as well. I just cannot be without fully operational machine more than 24 hours.
Trotec Speedy 300 - 60w, with Quatro CSA-626 fume extraction
Xenetech 1625 x2,
New Hermes TX pantograph, CG4 cutter grinder
Brady Globalmark2 label printer,
Assortment of custom tooling , shears & punches, heat bender.
Software: Xenetech XOT, Corel X3, Bartender label software