How quickly do they patch vulnerabilities, and what guarrantees do they provide to continue doing so for the life of the product? As "sexy" as these products look, they look to me like yet another walled garden.
Being that these products are catered more towards enterprise, and pro-sumer users I would think they'd be inclined to release patches in a timely manner. After taking a quick peek at their software change logs going back to ~2013, they consistently release monthly patches.
https://help.ubnt.com/hc/en-us/articles/115013737328-Ubiquit...