We have had these since they were first released, had one issue when only some of the discs updated and others didn't do had to reset, other than that they work very well, full speed WiFi throughout the house and outside (and by that I mean i can transfer to my NAS at full speed). Can't imagine it would be necessary for most homes, we have a solid stone house built into a very steep hill.
I haven’t used the BT mesh WiFi system. I recently wanted to upgrade my Apple extremes (3 of them) and replaced them all with AMPLIFI. Http://AMPLIFI.com AMPLIFI is made by ubiquity who make the ac lite mentioned above in the posts, but is aimed more at home users. Very happy with my purchase. love the performance of the system and the level of control the phone app gives. The base unit is beautiful and useful with a touchscreen. No hard wiring needed. Each repeater takes up a power plug socket. It’s the easiest install ever. I would highly recommend it.
AC lites are less consumer orientated... They were the first to innovate with mesh WiFi... Ubiquiti are used more by places such as businesses and universities.
I have a pair of these and they work flawlessly. Might not be popular with WiFi elitists but for the average home user they're great from my experience.
I’ve had the Nova MW3 for a week now (3 boxes), plugged into my Sky router. Works perfectly so far, and half the price.