Ran and Mayones are both based in Poland. He doesn't seem likes he's had loads of customers, but both RAN and Mayones make really STELLAR guitars... I would go for it, at least he's not charging 2000 like other luthiers...
Well, i guess you can look at it from 2 points views

One view could be that he doesn't seem to have a lot of customers that means he can really focus on your instrument.

Or, he doesn't get a lot of customers cause he's shit :P
I think I'm gna go for him