It's not a great area, but if you avoid walking around at night and use normal big city safety precautions you should be okay.
I'd look elsewhere, personally.
Just to clarify, are you referring to Spring Hill Suites Tempe or Spring Hill Suites Phoenix Tempe/Airport, both of which are in Tempe?
Spring Hill Suites Tempe is very close to Arizona Mills Mall which will provide you with many dining/shopping options, but the area is not the best (also not the worst). With that said, if you take normal precautions you should be fine. I have walked around that area at night without any issues.
Spring Hill Tempe on South Priest Drive. Not like I am going to be going to the mall..some dining options but mostly will be at the stadiums. Thanks for the info.