Would you buy that same model again, or get one that has a wider range of vertical adjustment?  And would you care to reveal what you paid?  

Just now, PeteM said:

Would you buy that same model again, or get one that has a wider range of vertical adjustment?  And would you care to reveal what you paid?  

Unfortunately most of the low to mid priced units have fixed focus laser modules.  I would consider one with a larger working area. Mine maxes out at 160 mm x axis by 150 mm y axis. Depending on the depth of a bowl it might not be possible to engrave at the center of the bottom.  
When I got it I think I paid about $200 but that model is no longer available. And I’ve read that the Ortur company hasn’t been too reliable recently. @Steve Krumanaker just upgraded his laser and can probably give additional insights. 

I recently bought an ortur, it lasted only a few months and I've had no response from customer service so I then bought an Xtool D1pro red. At this point I would go with an Xtool although I really liked the ortur and may eventually replace the laser module. The fixed focus is not a big deal for the kinds of things I do but I think it would pretty easy to make an adjustable work surface to help with height adjustments.