Any recommendations on a good scooter to buy?
I would advocate for rubber tires despite the discomfort. the moment you get a flat tire is pretty much the end of your scooter's lifetime as it is very difficult to fix it.
I like Glion for its design and ease of carrying, but Segway wins in every other aspect. Depends on your budget. If you are willing to spend a grand or more then Mercane WideWheel probably tops the market right now.