Maybe I'm just incredibly lucky, but my reviews on Google Play take roughly an hour and appear to be entirely automated. My initial review was about a week, but everything after that has been 1hr. My Apple reviews are still around a day and my initial review was one month. The Google process is painless and is almost as easy as a web deploy, the Apple process feels much less certain that it will go smoothly and Apple actually regularly opens the app even months after release. This is presumably to check for problematic UGC, but feels rather unnerving.