Yeah, I liked that too, although having a (quite) basic usage only :-)

As for an alternative, I really like the SailfishOS by Jolla: https://sailfishos.org/
It's built on top of the mer core project, which is built on a left-over of what should have been the N9 if it went out. I think it is now run on a community basis. There are repositories for open source Qt apps' too.

I really like what they did for their first phone, it's just annoying that they get entangled with the tablet. It seems they are launching a phone with an Indian phone provider...