"There's nothing wrong with Blender's UI, people are just too lazy to learn something that works right."
This is all you will ever hear from diehard Blender world. No matter what. They would still be saying it if Blender's UI required you to cut your dick off.
There was a discussion about Blender on the X-Plane forum and several people commented how hard it was to use. I put essentially what I said here on that forum (Blender pain in butt to learn, but powerful) I got five or six PMs telling me I was lazy and Blender's UI is the best around and if I had trouble learning it I must just be dumb or variations on that theme.
As for Tinkercad, which I still haven't tried, all I've found is that the free accounts will end at some point. Judging by their pricing page it's $19 per month for a personal account (once they start charging). I assume they are using the adobe model of you pay for a month and then can use if for one month, but if you don't want to pay for it the next month you can pick up whenever, since they don't offer an annual.