The drive-thru is pretty bad. Don't get the inside lane if there are lots of cars...one time at about 915pm they decided to stop taking orders w/o letting us know...the outside lane was moving fine. Plus, outside lane cars will block you in. Also, don't order a hot fudge sundae in drive-thru...they will give u chocolate sauce instead and hope u don't notice or say anything. Blech. And they tend to get confused and get your order wrong.
Going inside is much better. The playplace is painted with really interesting AZ desert paintings with lizards, snakes, geckos, etc enjoying McD's fare. 4 stars for inside...had to take 1 away for the bad multiple drive-thru experiences we have had.