I currently have these mirros on my 3, and have already ordered them for my GTI. A few comments for those who may be on the fence -->
1. With the mirrors properly adjusted (
How To) these completely eliminate the small blind spot you may have left. Plus I find they help to capture cyclists and multi-lanes
2. The blue tint functional, in that it severely reduces the glare of traffic at night. Between my auto-dimming mirror and these side mirrors, I'm never blinded by cars behind me.
Personally I think these are a great purchase.