At last i got my nexus 5 from ebay and installed 3.0.0.8 on it right away, but it has some issue. It does not go to suspend. I ran enabled and started this service like in the first post but still devices will not suspend
devel-su systemctl enable bt-sleep-monitor.timer
devel-su systemctl start bt-sleep-monitor.timer

How does 3.0.0.8 work for you guys? Did you had this issue?