The motion sensor is very sensitive and I ended up spamming myself, but once I adjusted the sensitivity and frequency, it works a treat. The infrared is better than some cameras I've seen but has its limitations, however indoors a 20+ foot range with good definition is acceptable.
There are app's available including for the kindle and the ease at which you can set up the camera to receive live video footage as well as operate the pre-sets is as simple as simple can be.
If you have any worries about customer care, I would say don't worry, the response and service is far better than many other larger online stores. As a consequence of my dealings with customer care I've up-rated my rating from 4* to 5*.