It's a weird place, I've rented in OB for twoish years and the transformation has been pretty crazy (but there's still a ton of work to go). Tons of storefronts ripe for development (Broadview), and a few major arteries into town make it nice. A lot of folks I know have been priced out of trendier areas and are moving into the neighborhood. That said, it's the largest neighborhood in Cleveland and with that, there's some great areas and meh areas haha. Once the CDC revamps the old theater on Pearl it'll just add to what's there. Also, hopefully the cellphone businesses on the corners get bumped out of there - it's a shame for folks to go to the beautifully restored Aerial Pearl and then have few options (Opal on Pearl is about it) but to leave and go to better areas.
Edit: Also, once the old dump by Burger King turns into an actual park that'll mark a big transformation, oh, and if you like biking the neighborhood is right off the towpath! And come back in summer once the Ben Franklin Garden is in full swing, it's a great long running tradition (even if most gardeners are from out of the neighborhood). I swear I don't work for the CDC lol