I’ve moved my MQTT from mosquito to embedded mqtt broker in OH 2.5 (latest snapshot version) and what I can tell now is that apart from all advantages which this can give me it has one big disadvantage - it’s slower. I need to wait about 1s untill my light goes off on sonoff realy. On mosquito it was almost like on cable…
Moquette has been out for a long time. But shortly after openHAB adopted it the developers of Moquette seem to have abandoned the project. Just to be clear, the problem is a lack of support from an upstream project, not that the openHAB developers decided to drop it.