The watch is easy to use, I use mostly for the Samsung Health app features. It's comfortable, even when sleeping. It encourages me to get up and move, which is great when sitting at a desk all day. I highly recommend.
I haven't learned all the in's and out's yet, but my new 44mm Watch7 is bigger and better than my Watch4. Even with the bigger display, the battery lasts longer than my Watch4 as well, I've been using about a half the battery per day or a little less. Since I paired it with an S24+ at Xmas, I'm learning about them both at the same time.