As it’s on sale for like $6 right now, I’d say buy it because if $6 is an appreciable loss to you, then you have bigger problems in your life than having just bought a mediocre video game.
I thought Resident Evil 5 did what it did surprisingly well, but Resident Evil 6 was like an over the top Hollywood sequel, the Expendables of video games.
The games returned to survival horror form in 7 and 8, which are quite good, I was one of the best RE 7 players in the world, aka I was unemployed when that game came out and I played it way too fucking much.
