IMO, OPPO make solid universal Blu-ray players which are unbeatable in their price range.
I had a BDP-83 which I sold still in excellent working order. I am now using a BDP-95 which does an excellent job. I have no hesitation in recommending the new UDP-203 which will play 4K discs as well as SACDs, DVD-As etc. Those products are made by a dependable manufacturer that continuously does R & D and doesn't stand on its laurels.
If I were in your shoes, I would compare the 203 with the 205 before deciding.
Talking about Esoteric, you would be throwing money away. It reminds me of a Lexicon Blu-ray player which was released several years ago and, despite the fact that it cost 4 times as much as the OPPO equivalent, contained indeed OPPO electronics wrapped into a Lexicon casing.
It is so easy to get screwed by, what I call a type of misrepresentation, in the audiophile market.