Yeah Deviser is a chinese brand but not all its models are bad, some are actually good quality. i have one myself but I don’t use it much anymore.
Mahalo is pretty popular and for good reason.
I’d say you need to look out for quality of strings and wood, the rest is fairly easily replicated.
I think a lot of it is personal choice. In my 5 years of playing I have found little difference between the normal priced ones and super high end ones. Plenty of youtube videos show the comparison too.
But some styles are more comfortable and the sound varies slightly which usually the player can tell.