Every beta I put in a feedback item saying that moving bedtime from Clock (where it was easily found) to the horror of trying to find it among heart rate data in Health was really grim
For one, you have to dig into various screens to find weight+body fat%, and then go into each item, click "Add data" and then back out to the next one if you want to update both at the same time.
Obvously took my reports to heart (heh)