I got mine a couple of years ago too. It wasn't painless at all. In fact, the first week sucked. And I developed light sensitivity although it went away after 5 or so days.

I also suffered from dry eyes. Something that the doctor says rarely happens but seems to happen more often than is being recorded(from personal research, seems to happen when person suffers from high astigmatism). But it does decrease within a few months and now I occasionally have to use the eye drops to keep them hydrated so no big deal.

Regarding the blurry night vision, it happens sometimes to me. I noticed that i notice it more when my eyes are more tired and less hydrated than usual.

Overall, I am also happy with the experience. The greatest thing about it is enjoying the underwater views as mentioned.