I knew the previous owners, so my review can only be said for them.
The Lake Delton Motel is definitely a throw back to yesteryear. This place is everything that I remember about taking trips to the Dells when I was a kid. If you are looking for a clean place to stay, with a pool, then this may be the place for you. The décor is a bit outdated, but when you see what you will pay for a night's stay you will most likely forget about is.
The motel is close enough to access the Dells by car; just a short 5-minute ride. The best part is that you are off of the main drag. If you want peace and quiet, it's yours.