Never been in a SHS, which is part of the concern. Never been in a Fairfield, SHS, Courtyard, etc etc. I've never really been in any of that particular category of hotel. HIX Suites might be the closest I can think of? I've never done anything resembling extended stay either.
Suburban is frankly perfect though, so thank you all again for allaying my concerns. I'm a lot more concerned about properties when I have my wife and children with me. Actually... the kids are flexible but my wife always wants champagne on a beer budget.