I have had the Muji collapsible sorry-sided carry on since 2017 and use it 1-2 a month on planes (80%) and trains (20%). It is a durable bag and I’ve never had any issues with it. I walk about 1/2 mile to the subway on city sidewalks with the bag and the wheels do just fine. I often have to gate check the bag on smaller regional flights but occasionally will check it in if I’m carrying something heavy or a liquid. Never had an issue with the bag. Was bought in Japan in 2017; I live in NYC.