I am very lucky to be both close to the Mayo Clinic and in-network with my health insurance. Logically, this is where I wanted to go when a health issue came up. I don't think I have ever been to such a top-notch facility. They excel in every regard: customer service, friendliness, wait times, patient care and of course research/knowledge.
The building is located on a pretty large campus between Scottsdale and Fountain Hills. The surroundings are beautiful, with nature trails and climate-appropriate plants (I always wondered why anyone in Phoenix would bother with grass!). The buildings are clean, visually appealing and adorned with artwork. The people working here, from the front desk people to the experienced doctors, are patient and compassionate. It says something that there is a hotel next door where out of towners stay just to get an appointment. It also says something that I waited 3-4 months to be seen... But once you're established in a department, you can make appointments more quickly. I also think it's awesome that data from my visits can be used for research purposes.
The only complaint I could possibly have is that scheduling isn't easy if you work a 9-5. You may have to take whatever you can get. But it's worth it to have a pleasant experience and piece of mind. I will definitely keep coming here if I need anything in the future.