@apple.muncy have you tried it on another device?
I have been on it on my nexus 4 for a year, and now with ota-13, it's a great thing, ready for day to day use no worries at all.
I came to the nexus 5 because I got one cheap with broken glass and repaired it because my nexus 4 has digitizer problems. The experience on the 5 is just broken in comparison to the Nexus 4, this will undoubtedly improve (hopefully!!). It's annoying as it's so much smoother running on the 5, looks way better too and has widi/miracast support I think?
So I think I will be getting a new screen for my nexus 4 and updating the 5 regularly until the ubports version gets to be where the nexus 4 is now.
I will support the effort financially in a small way if the bounties etc are goal oriented to that end.