Can confirm. Here the 3 of us have 2nd generation AirPods. In one of them the mic is no longer working, on another one of the AirPods won’t connect 90% of the time, and the last one has a combination of these two issues. Another family member is on their second pair already.

AirPods are great, while they are working.

Edit: forgot to mention that 3 of those pairs were replaced while under warranty.