What has been people's experience with this series?

Certainly, they are easy to install. I'm seeing seven MAC addresses for each access point, some are without SSID. According to my Android based scanner, one of the 2.4GHz access points is a 40MHz channel. I'm seeing channels 1, 2, 3 (with SSID), 1, 2, 3 (without SSID), and 1, 2, 3, 4, 5, 6, 7 (without SSID), 36, 40, 44, 48 (with SSID), 149, 153, 157, 161 (with SSID), 149, 153, 157, 161 (without SSID), 149, 153, 157, 161 (without SSID).

It's still too early for my final judgement, but this seems like a lot of spectrum use. That wide 2.4GHz channel will cause interference for neighbors in high density urban areas. The speeds I'm seeing are reasonable, not stunning.