I'm going smaller. I started with 33ft. It was 97" wide with no slides. For storage it had 4 usable bus sized bays, 2 on each side. Plenty of room for lawn furniture, Bbq grills, tools and spare tire. A big positive was that It fit into 2 tandem parking spaces at venues.
It was never too small for the wife, the dog and me. Unlike, the bear II, I liked having a smaller rig during inclement weather. It was easy to warm when the weather turned off cold and keep cooler when the temp runs into triple digits.
It was too big for some state and federal campgrounds and we would have been turned away at our favorite campground if they enforced their 30 foot length limit.
The biggest want, that wouldn't fit was an ice maker. There was no room inside to put one. I often wished to have more ice for refreshments. We didn't have laundry facilities but I like laundromats. If you need 6 washers use 'em.
We chose no slides because we also urban camp. Keeping a low profile is important. We never found a bus that was pleasant when the slide is stowed. Maybe there is one, but we never found it.
We have friends who are stepping up from a 40 to 45 foot. They mainly travel interstates from overnights at Walmart to longer stays at Casino's and RV resorts.
It all depends on your style.