We have had both a Roadtrek 190 and a Roadtrek 210. We have also had a couple of small (23foot) Class Cs over the years. There is no question in my mind that the 210 is not as maneuverable as the 190. Booster's suggestion about the 170 is a good comment. By the way, the small C compared to the 210 was just a nightmare in some aspects. A small C is a truck and a 210 is a van. Useable storage space wise, the 210 beat the C hands down. Like Bangorbob, I am getting along in years and that makes a difference as well. If I was choosing between a 170, 190 or 210 today I would still go for the 210 for our use because we enjoy the shower and our 210 is the twin bed model with armoire. I just wouldn't want to give up the storage space for all the junk we carry for extended trips and camping.
I bought a 2011 Jeep Grand Cherokee Limited new when it came out and was the first of that body style. Last year, I bought a new 2024 Grand Cherokee Limited. Same as the 190 vs 210, the new GC is a few inches longer, wider and taller and parking it is much different. I am amazed at how much difference a few inches makes in the handling and parking.