Ive had an Apple Watch since they launched and I always say the same thing to people asking about it.......... it is not life changing..... but just makes stuff easier!! Personally I wouldn't be without it (and I have a very expensive Swiss watch which now gathers dust!!).
Agree that notifications is best feature, followed I would say by fitness tracking, Apple Pay/Wallet and music. I don't really use many apps at all.
In relation to the point on charging - this really is not an issue. Take watch off and drop on charger overnight. I have never run out of battery during day (even on occasion when i forgot to charge!).