Since the last updates the watch is awful, which is unacceptable for an expensive premium product.
Battery life is unstable, with it commonly not lasting the day (or even just the night) after a full charge - previously I'd get over 3 days.
Bluetooth connectivity is glitchy, not connecting to the phone right beside it.
Auto WiFi doesn't auto switch when the glitchy Bluetooth loses connection.
Laggy responses to touch, such as going into settings to check connectivity.