You can sort of tell what’s going to be good. Acktu and Srinivasan are two makers whose work I happily endorse. Quality handcraft polys, very little performance impact. They care about their work and it shows.
There’s one package that is a theme park overlay in Los Angeles. Even from the screenshots on the download site, you can already tell this is simply a GI rip with no QA whatsoever. And it looks awful even at altitude.