1. runs circles around i9 that was 4x its price, not getting hot or noisy 2. used to have some problems with gems/pip a year ago, but since then it is fixed, only like 2 Apps I used day to day are still under rosetta, other 100% native 3. n/a 4. I was thinking 16 would be not enough for iOS development, but it beats the i9 with 32gb ram easy, not really getting hot or noisy