I won’t say I’ve jumped ship, but I bought an Apple Watch 2 to use alternating with Pebble Time Steel. Battery life on AW2 first day was 19 hours, but I made the mistake of updating to AW OS 4, so my bad. Also (as would be expected) I played with it a lot first day. After that, I turned off wrist flick (it is really sensitive, and lights that battery draining screen ALL THE TIME) and after 34 hours, I have 49% battery left. Not a Pebble, but sort of acceptable. My plan is to alternate between wearing AW2 and PTS.
My rationale on buying the AW2 is that although the Pebble is (IMHO) a superior product, that since it is connected to a phone, and phones have updates, that eventually the Pebble may stop working with all phones, due to Apple and Android updates breaking the software side of the watch.
Until that happens, I will enjoy both products!