In terms of dependability I haven't had to powercycle it once in the last 4-6 months (not quite sure when I got it) because it had slowed down which I would have to do at least bi-monthly due to overloading all of my previous routers.
The firmware interface took a bit of getting used to, but for most people who don't need to port forward or manually assign IPs to most of their computers basic setup is simple. Once you know where everything is, it's just like programming any other router.
Signal wise, I've had no issues at my parents or at my own apartment. My parents have 3 setup - two of which are in the basement (mostly to be used as switches, but also as WiFi points to combat all of the interference down there). The router in middle of the first floor blankets that floor and the second floor beautifully with both the 2.4 and 5Ghz signals.