This one gets zero stars. I may be off but 24 hour shuttle usually means you have a shuttle that goes back and forth from the airport throughout the day. No such shuttle appeared. Ended up cabbing it (that's another story - look for Mayflower Cab in Phoenix) an having to make an appointment for the shuttle in the morning. Upon arrival, the worker at the desk was chatting it up with some person who looked like he had nothing better to do at 11:20 pm but hang out at this ghetto ass hotel. When we interrupted their conversation, we weren't greeted, no smile, nothing. Finally get checked in and make our way up to the room. Absolute bare bones, which we paid for. At least the place seemed clean to the naked eye. Who knows what a black light would have revealed.
Upon check out, Mr. Hospitality was still working the front desk. We were walking in just as he was walking out with the coffee thermos. He could have taken care of us first then the coffee later. Nope. Coffee more important. He comes back carrying two pitchers of juice and a tray of pastries (both hands full). He bangs the tray into the window and sneers at us as if to say, "Open the door for me." We checked out quickly and were happy to get out of there. Thankfully the shuttle was there already. (Run by a third party)
Recommendation: never stay here. Ever. For any reason. Sleep in your car. Days Inn should take away their license to use the company name. I've stayed at a lot of hotels and a wide array of them. This is by far the worst hotel experience I've ever had.
They only get one star because yelp requires it.