First, I would like to mention that I had never had a pair of Airpods before the second version was recently released. For calls, the Airpod functioned flawlessly. My individual problem with Airpods was with poor fit, low volume and flat overall sound.
I guess my left ear must be different from my right ear because I always felt as if Airpod in my left ear was about to fall out with the most minimal movement. Frankly, it bothered me and the idea of losing Airpod scared me too. To add it, when I played music, I could never get the volume where I wanted it. There was always one step lower than where I felt it should have been. I realize this is subjective, but for me it always left me unsatisfied, especially after reading many rave reviews that convinced me to buy them in the first place. In addition, the sound was relatively flat. Bass was almost non-existent. After finding out about the similarities between Airpods 2 and the soon-released Powerbeats Pros, I decided to return Airpods 2s and wait.
An extra personal observation: The PBPs are supplied with the medium-sized silicone tips that are installed at the factory. They sounded good with that size in my ears, but I realized I wanted to try the other sizes just to see what they would do with the sound. By switching to the big tips, what I thought was already good sound, seemed fantastic! If you get the PBPs, do yourself a favor and try the different sizes. You may end up being pleasantly surprised!
Before I go, I would like to note that both the AP2 and the PBPs match the same to the iPhone and for calls, they both work flawlessly. Who you are in a conversation with, has no idea that you are talking to them via wireless headsets. I'm sure this has to do with both devices sharing the same H1 chipset.
If you experience the same problems as I was with the AP2 and standing on the fence with the PBPs, do not wait any longer. They are the solution to your problems!