Last I heard MS were having reliability problems with the Surface:

"The breakage rate for Microsoft Corp’s Surface devices is significantly worse than for other manufacturers’ laptops and tablets, Consumer Reports said, adding that it was removing its “recommended” designation for Surface products."

https://www.reuters.com/article/us-microsoft-surface/microso...

That report is based on faulty data and has been discredited.

I don't know about the pure statistics, but my experience and other people I know (which actually still run the Surface Pro 1) have had a great experience.

In the past, there was a minor issue that the surface tablet didn't understand that you removed the keyboard. But that seems to be fixed now and it didn't happen that often anyway.

Surface pro experience where I work is not good. I had my surface for a few months, after every holiday it had problems starting. After my summer holiday, where it was powered off for 3 week, I could not get it to power on anymore. Had to return it to Microsoft, got a replacement. Replaced that with a thinkpad t470s. Much better experience so far, and having 24gb also helps if you run a number of docker images.