Like I said, I'll let you know tonight about night vision. I don't think it will be a problem.
It absolutely cuts out glare, significantly. Next to us, in the marina, is a boat with a ton of shiny stainless steel bits. The sun bouncing off those things was like an icepick in my eye. I had to close my blinds during the day. Not anymore! Glare off the water is reduced as well. Things are more clear outside because I'm not blinded by the UV. The strain on my eyes is greatly reduced.
Keep in mind I only went 30%. Some guys use what I call "drug dealer" tint, the REALLY dark stuff. I think they go as dark as 60%. That'd be too much for me personally. Certainly wouldn't want to
learn more about that in my pilot house.