UV Laser Engraver

Hi, i was looking for something that can engrave on most materials, i currently own a LP4 and i recently say some reviews on the Commarker Omni 1 and was wondering is it worth the hype? and does it really work as advertised if someone tried it alread. or is there something similar in the market maybe on a lower price range. i noticed that Commarket removed the 3W version and introduced a 10W version of Omni 1 thats almost double the price.