I've experienced a video driver crash or two, but I'd hardly call that an issue for me. Screen flashes black for a second, and then I carry on as normal. And In 2 years I have never once done a 2 finger reset. I always shut my surfaces down as opposed to putting them into sleep, so never had to worry about any wake-up bugs (such as not waking up, requiring a reset, or waking up in a bag and draining the battery). I will add though that my surface has a very specific use case, and doesn't really get used for anything more (chrome+office). Most bugs I come across are just small things due to being on the fast track insider program.
There are certainly bugs, but not things I'd consider an issue, in that they do not effect my usage. For instance the current build I am on, tablet mode doesn't work, but it doesn't present itself as an issue for me and I can keep on working just fine. So while bugs do not present themselves as issues to me, to others they may. I won't deny that MS need to work on giving everyone the same (good) experience. It can be hit and miss as this thread shows, but when they work, they are wonderfully reliable.
You must be lucky, i didn't use my sp4 for the first 4 months completely unusable due to video driver crashes.