I'll be going down to the Box Canyon area just outside of Florence. I was there last weekend and my 96 Outback did just fine through there (and I'm on stock suspension).
I'm sure you have heard horror stories about Box Canyon...There are some very rough areas yes, but as well there are lots of places an Outback or Baja can play in. Baja would actually probably do better out there than my Outback does. I can say that I've never broken anything out there....you just have to pick and choose what you will and will not go for. If flat dirt roads are your thing, there are lots of them out there.
I carry tools / chains just in case something bad were to happen, but I've never had to use them yet.
I usually go out towards Sycamore Creek / Four Peaks / Mesquite Wash, but there is a fire restriction in Tonto right now so I can't target shoot out there. Box Canyon is open to just about anything you would want to do. Enough trails and fun places to keep you busy playing all day. Its about 10 - 15 miles outside of Florence, so gas, food, and medical help (god forbid) isn't too far away either.