I live in the Exeter area and I don’t personally think it’s that bad. The clubs are usually filled with uni students and locals so I think u get a nice enough mix. Theres about 5 clubs that are decent but nothing amazing like the bigger cities I guess. There’s lots of bars and restaurants & we have 3 Wetherspoons here soooo 😂 I like the city tbh as most things are in walking distance and the trains connect easily to other areas like Bristol so if you did get a bit bored you can hop on a train easily. Also in regards to posh people I don’t think it’s as bad as people say! I think it’s more when somebody up north comes down they hear the southern accent and think posh but most people aren’t in my opinion. And I have lots of friends who go there who are really lovely and down to earth. I’d say come and see it though because it may be too small for what you’re looking for and it’s hard to gauge without actually visiting
Hope this helped 🙂