I was in this position as well but after about a year of a FitBit Luxe, I'm a convert. Fitness-wise, I like the heartrate and GPS tracking for walks and bike rides, and length-counting for lane swims. I like that it's an easy interface to input my weight and see that as a trend over time. And I like the sleep tracking and smart-wake alarms quite a bit.

Notifications I could take or leave; they're not super reliable but have occasionally been useful.

Battery life is IMO fine; I charge it once or twice a week while sitting at my desk or having a shower.

I know I could cobble together these capabilities from a suite of other apps— Strava, Apple Health, whatever. And I get annoyed that certain things on the watch aren't more customizable. But the overall package is more than good enough for my basic needs, and has motivated me to make (and stick to) real lifestyle changes, which is ultimately the point, at least on the fitness side.