Mass Effect Andromeda. The reviews convinced me I'd hate it, but I couldn't stand the thought of possibly missing some lore after I loved the first 3 so much. Turns out it was actually pretty good.
No Man's Sky. It looked slow and grindy but people kept hyping it up. I caved, and forced myself to play 20 hours trying to find the good bits. I never found them.
Wow, imagine the egress fees you could inflict by looping between servers in different cloud regions...