I have been using the Airpods (Gen 1) for better part of two years and never felt the need to upgrade to Gen 2. The pro ones, however, are a different beast. The feature packed earphones are a huge step up from the normal airpods and I can't recommend these enough. The noise cancellation feature, although not as efficient as the over ear headphones or even maybe WF1000XM3 are still brilliant in their execution. You dont feel the cabin pressure and the ANC feels organic. Sound quality is better than the OG airpods and ANC makes the experience better but again these are not going to be the industry leaders for sound quality. The call quality was good and similar to the airpods normal version. Transparency mode is basically having a microphone attached to your earphones for hearing your surroundings even more clearly. I dont find much use for that mode but maybe cyclists and runners will appreciate this option to steer clear of people and vehicles.
All in all, a great product and must buy if you want a set of earphones for your iphone which are wireless and offer ANC support. If listening to music is your only preference then I suggest the Sony WF1000XM3 ANC earphones.