They can fill up quickly being on the interstate. The motel 6 is good for a Motel 6. I would book soon. Never had a problem with the Econolodge either. Those are the only 2 places I have stayed.
Friends of mine and I stayed at the Motel 6 for last year's ISW and were pleasantly surprised by how nice it is and the great staff. Not your usual Motel 6.