Rocky Rococo is around 2.5 stars for me. You order at the counter which brings me to my first complaint -- when patrons line up to order, it gets crowded near the soda fountain/napkin/straw/silverware area. Re-routing the line might help reduce congestion.
The interior is dark and kind of dingy. As others noted, the fact that you don't bus your own table means that greasy pizza boxes and plastic trays sit out for a little bit. This definitely detracts from the atmosphere.
As far as the pizza, it's just A-OK, as yelp says. It's greasy, with thick and soggy crust. The tomato sauce is way sweet and the cheese is bland and forgettable. The toppings are likewise bland and don't add much flavor or texture.
Why stop here? The lunch combos are cheap and, while rather tasteless, usually filling.