I think it all depends on location and road types. I had a People 150 For my first scooter, and absolutely loved it. I loved riding the back country road at 30mph with little to no traffic, and lots of scenery. Unfortunately, in my case, you have to navigate busier roads and sometimes interstates to get to the scenery. At 59mph my little 150 was not the ideal machine. I'm on my second 300cc scooter now (2021 X-Town), and it's perfect for me. I can still putter around, but if needed can run 75 or 80 to keep up with traffic.
It's a little heavier, more expensive, and not as good on mileage as the 150, but still pretty easy for me to handle (I'm 77 years old). I think is the perfect fit for me!