Just back from a super week at WDW...we arrived after 11PM on 11/14...I had a reservation through Priceline for <$40 including taxes and fees (all of the 3* hotels on Priceline in the MCO area have complimentary airport shuttles) at the Holiday Inn Select. It was excellent for an overnight. The shuttle arrived in less than 5 minutes, very nice lobby, I had called ahead and requested a room with a king and sofa bed, NS, which we got. Check in was quick. Room was large, bathroom looked new (tile, etc) Not too many amenities in the bathroom (soap, shampoo and shower gel)...they brought up extra towels and blankets (the front desk called housekeeping when he saw there were 4 of us...I didn't even have to ask. The pool area looked nice and they had tennis courts. We did not eat there (arrived late and left early), but several people on the shuttle back to the airport the next AM (I went back to pick up the rental car) were raving about the breakfast buffet (I think it was $7.95 and I think kids were free with an adult). They was also Uno's pizza on site (I LOVE Uno's) and a Fridays across the street. I think it was an excellent place for the price we paid. We have also stayed at the Renaissance MCO via Priceline and at the Hyatt in the airport...for about the same price . I think this place was a little nicer than the others, but the others were fine too.
The HI Select is right across the street from the Embassy Suites, we have stayed there also. It is nice and includes a full breakfast but is closer to $100/night (sometimes cheaper on weekends). If you just want a clean, comfortable place to sleep and shower before starting a vacation I think you'd be fine to take what you get on Priceline for an MCO, 3* hotel.