My only Superstitions experience is a couple late Jan on the northern side of the wilderness and not the southeast side you are looking at, so take my comments with a grain of salt. The northern road bordering the Supes was not paved (as of 2007) but 2wd vehicles were on it (an Arizona highway dept road motor pool was close to the TH I used). Just dusty with some rocks but the highway crews scraped it clear. The northern area is full of Phoenix residents getting away to the adjoining manmade lake, so I imagine the roads are still maintained even after budget cuts.
The bigger issue is Feb is the start of Arizona's first rainy season and the condition of any non-paved road after significant rainfall. There are some bigger trailheads which are closer to pavement closer to Phoenix. That said, some of the smaller TH's closer to Phoenix have had vandalism problems with hiker vehicles, … so much so that a few hiking clubs had fence enclosures for their vehicles on adjacent public lands.
In terms of greenness, it's more a function of elevation. Going to Reavis Ranch, I started in Sonoran desert cacti and ended up in coniferous forest. If the spring rains come through, you will likely see more green vegetation. When it comes to bugs and critters, I'd say watch your hands even with a traditional tent. I've been stung by scorpions on a number of separate occasions just opening a tent flap (they love to hang out in folded fabrics, .. all cuddly-wuddly)