We've stayed there many times, four that I can think of, and so have many friends and family. Stay in one of the two-story buildings on the bottom floor (no arch full of sun in the mornings!). We stayed in an arch room once and while I loved the retro-ness of it and the space, the morning was brutal!
The rooms are large and very clean. I've never had a single complaint about HoJo. Call them a day or two ahead of time and talk to Willy and tell him you really care about cleanliness, and I'm sure they'll book you in the cleanest room. They take care of their guests like that!