Carlinkit vs. Ottocast vs. AAWireless — which brand is most reliable?

Across specialist subreddits, Carlinkit (especially the Mini Ultra 3) and AAWireless are the most frequently recommended for long-term reliability, while Ottocast is praised for form factor and fast reconnect but draws more mixed reports on long-term stability. AAWireless is the standout pick specifically for Android Auto users who want firmware updates and configurability.