Now that I've had Rosie for a year here are a few of my thoughts. Do I miss my 30' rig? Absolutely not. Its so much easier to jump in Rosie and take off without days of planning and loading.
I LOVE that I can pull into any gas station and whip a U-turn when my GPS takes me down a deadend road. That I can EASILY back it into any site. I can use it to sightsee or for that trip to Walmart. Yeah, its sort of a nuisance to have to unhook so I use a 'quick release" on the water hose and just leave the hose at the park. Don't hook sewer up until I want to dump and since I most often get just a water and electric site to save money that's not a real issue. Do have to make sure stuff is stowed and not loose but in such a small rig you want to keep stuff put away most of the time anyway. If its hot in the rig while I'm shopping, I just turn the generator on and the AC for the dogs. I had gotten to the point that I no longer enjoyed the driving part of my big rig especially when I was towing.
I bought the 190 that had two "twin" beds (not really as wide as a real twin) so Carole could travel with me sometimes. When she's not along I can make the bed up into a queen but it was annoying to have to schooch off the bed in the middle of the night. Finally figured out I could make a real twin across the back -plenty of room for me and the dogs AND a place to sit.
Also, am getting around 12 to 14 mpg which is much better than the 8 mpg I was averaging in my big rig.
The only thing I don't like too much is the aisle shower cause in my older rig the shower pan runs the full length of the rig up to the driver's seat. Lots of wiping after a shower. So thank God for baby wipes and Navy showers. Don't think I could fulltime in such a small rig but some do.