Lots of cultural things to do in Qro. Be fore- warned any hotel on the Jardin may be a little noisy on the weekend nights. Very popular, good food and moderately priced. There are several higher priced restaurants on the Jardin. I can personally recommend the Posada de Santa Fe, or San Diego, right now I'm having a synapse-lapse.
Taxis are in abundance and the bus goes right by the front of the building.
I know there are lots of restaurants and hotels that I've not encountered. Have your cab wait for you. Cabs to that area are not very frequent. Have a good trip. It should be within your price range.