Thunderbird Suites in Scottsdale is a moderate lodging facility with a price to match. I would come back for a few night business stay. Not the accommodations I would choose if I was coming for a pleasure vacation, or an extended stay. Clean, quite, comfortable and a good location.
The room I stayed in was a King Suite. Two rooms, sitting room with mini-bar and TV, bedroom with a king bed and TV. My room had an outside window that opened - a big plus for me as I hate being trapped in AC without outside oxygen. Even though the room looked out on the Scottsdale Airport it was very quiet. Not much jet traffic at night. In the morning time things were buzzing. Ask for the top floor (always!)
Location is excellent as you are close (less than one mile) to the Scottsdale Quarter outdoor mall. This mall has a huge selection of restaurants and things to do. Close to the TPC courses. This is north Scottsdale, not the central area.
The Thunderbird Suites facility has a small bar / restaurant. Standard fare, club sandwiches, drinks, etc. Nothing fancy. The complementary breakfast is forgettable. They also have a pool.
Bottom line - 3.5 stars and I would return.