I have a hero 7 black, got it right when they came out last year and it instantly became my new favorite camera. The hypersmooth digital stabilization is really, really good. Sure, not quite as good as a gimbal BUT infinitely more durable and easy to carry around, with almost as much benefit. The hero 7 is a tough cookie, surviving multiple crashes this year skiing without a scratch. Waterproof. If I crashed on skiis with some kind of gimbal it would likely snap its neck right off. Not sure if I have ever seen a waterproof gimbal either. But you can get close to that kind of smoothness in a tough, compact package that pockets easily with the hero 7 black.
Note, only the "black" has the hypersmooth feature AFAIK
so the rest of their cheaper cameras are great but just regular digital stabilization. If you are going any kind of hand-held recording whatsoever the hypersmooth is worth the extra cost. For a fixed mount on a windshield or something then maybe not necessary, but very likely at some point you will want to record by hand or with a helmet mount right?
The battery life is the only thing, and this is for all gopro cameras as well as most of their competitors, its just hard to fit a long life battery into these small packages. I bought three extra batteries (they are cheap enough) and the dual bank charger and now I always have plenty of battery to record way more than I will ever find time to edit.
I would recommend the hero 7 black to anyone who is in the market for a solid, tough, easy to use camera for adventures and sports. Now if only I could find more time to edit video... I'd share ya an example. Haven't processed my ski footage for the year yet.