I have never really liked any of the major players. I used to run WebOS on a Pre3 for a long time. Now I have a Jolla C, but it isn't my main phone because of its poor battery life, so I also use an Android phone.
The saddest thing here is those alternative OSs innovate a lot. WebOS in particular was years ahead of both iOS and Android in terms of UX (after all they had Matías Duarte on board... [1]). Sailfish is more interesting technically, in that it was probably the fastest OS to do "zero to non-trivial native mobile app" on thanks to its development tools (the Qt environment, with QML, a standard build VM...).
I backed the tablet as well, but I don't hold a grudge. What they are trying to do is incredibly hard, failures have to be expected.
If you want to meet the developers from Jolla, I think they have a BoF room at FOSDEM every year. I sat in to listen for a while in 2017, it was pretty interesting.