I lived in Manayunk 2013-2016 (late 20s/early 30s) and just moved back last year (mid/late 30s) - I love it. It used to skew bro a lot more in previous years but it has grown up a lot because the residents that live here have grown up. Yes you still have the St. Joe's college students and they will be concentrated the closer you get to Main St. I lived right by the Manayunk train station before and got some of the riffraff but it never bothered me. Now I live on the west side of Manayunk and love this area SO much - it's close enough to walk down to Main St, but far enough to leave Main St at Main St. My immediate blocks are a mix of lifer old heads, post grads, singles, and some families. We have a group of girls late 20s-late 30s that formed a little group and we get together often. In terms of things to do, Manayunk has a great mix of neighborhood bars to a few upper scale restaurants, and everything in between. There's boutique shopping, the Manayunk Development Corp is EXTREMELY active and there are major events throughout the year, you've got the tow path, the bridge that connects you to the Cynwyd Trail, and you're close to the Wiss. Regional Rail is a super easy 20min ride to Center City and there are buses too. In terms of dance clubs, most of the old clubs have since closed down but there are places that have live music (Grape Room) and I think the Brewery still does dance nights sometimes.

Always happy to chat Manayunk, so let me know if you've got any other questions!