If you are going to stay in a Hotel in the Knoxville area that is price friendly and nice I would suggest the Quality Inn on Cedar Bluff Road. There is lots of free parking, it is close to a lot of different places to eat, some of the places near by include: McDonalds, Burger King, Wendy's, Waffle House, Little Cesars, Papa Johns, Taco Bell, Arby's and Starbucks. Those are just the places that are within walking distance.
The free breakfast is awesome. They have stuff you can find at pretty much any free breakfast. Bagels, cereal, toast, coffee, crappy watered down orange juice, but they also have belgian waffles. If you don't like hotel coffee the Starbucks is right next to the hotel.
Easy access to the Freeway is one other great reason to stay here and it is only about 10 minutes from downtown Knoxville. Pretty much anything you could need or want access to is not to far of a drive. A post office, UPS Store, Staples, Grocery stores, Walmart, shopping mall. All those things are no more then 5 to 10 minutes away.
The only thing I can really think of that sucks about this place is that during rush hour it is hard to get to the hotel from the opposite side of the road, but I imagine that is a problem pretty much anywhere.
The Jacuzzi was our favorite part.
The pool has a heated waterfall and it feels kind of romantic when it gets dark out.
There is a small "waterpark" with a couple slides and other things.
This is a picture from the opposite side of the play area.