Well after using using ReFrog, I didn't see it anywhere on the taskbar or task manager, was hidden well.
It keeps logs very well. I had it open when typing a message here, viewed logs and it was recorded word for word, no errors.
It says it can take pictures, unsure of it means the people or the screen, but it has the option.
To open it you have to know it is installed, as you have to go to Start>Run>Program-name.
I have not seen any spyware warnings pop up from Spybot S&S, AVG, Windows or Ad-Aware, so it seems safe.