Agree with Trevor. I bought the UB820 when it was initially released. It's been working without issue.

Panasonic also has a more 'professional' model out (UB9000) that's essentially the same player, but aluminum case that I wanted to get, but couldn't find one at a reasonable price point.

I bought the LOTR extended version in 4K a couple months ago. Waiting for a day I don't need to do anything to binge-watch it. These movies are one of the few that I actually prefer watching the extended versions.