I've been using PC-Doctor for quite some time and it's a great tool.
Two things that I've noticed with version 7 are:
1) When trying to send Feedback through the link at the bottom of the window, it's firing a virus warning, and...
2) When using it to monitor CPU/GPU temps, while the GPU temp is on the money when checking it across several different programs, the CPU temp is indicated at celsius but corresponds to fahrenheit temps.