jinx! yes I'm happy with fossify too, thinking about taking a day to unlock my bootloader and put graphene on my xperia, but something was stopping me before... maybe the banking apps that refuse to run on a modified bootloader? But really I don't need to be banking on my phone. I think there are some proprietary video codecs I was afraid of losing.
Only other hurdle to open source nirvana is OsmAnd is not as slick and smooth as Google Maps. I spent a few days acclimating to it and once downloading the gigabytes of address-data-to-GPS-coords I could start enjoying offline navigation, but when it comes to finding local restaurants' and whether they're open its hard to beat the Goog.