We've camped at Maumee Bay State Park twice and enjoyed it both times.  The campground is part of a larger resort complex that includes a hotel, marina, a nice beach on Lake Erie, a second beach on an inland lake, golf course, mowed hiking trails and - our favorite - about 5 miles of beautiful, paved bike paths.  It's all very clean and well maintained.  The whole place has a welcoming, friendly vibe.

We camped on site 47, electric only.  Very level and spacious paved spot with its own shade tree.  Nearby shower house accessible by well-lit paved path.  Our only problem was a bit of water puddling near the camper/fire pit but it went away after the first night.  

The campground is spread out so everyone brings bicycles and also saw a few golf carts.  Very nice for family bicycling!  Saw lots of wildlife on our rides.

The surrounding area is kind of industrial.  We toured it the first year we went (very interesting!) but stayed close to camp this year.