Surface does have its fair share of bugs. At least in my experience (YMMV) the macOS bugs are more critical and often revolve around NVRAM, which somehow only breaks things for Mac devices.

The newest and my personal favorite is a faulty file save/open dialog on OS X. Anytime an app invokes that, the entire app crashes. Really fun in Chrome, Word, Atom, or any other app that involves opening or saving files.