Good question. I don't work in real estate development. The google page for Pointman seems to have generally favorable reviews:

The only one star reviews seemed to be about a software glitch preventing them from accessing pointman and not of the software's own functionality or usefulness. 

Looking up discussion on forums about pointman, I couldn't find feedback (the OP of the thread is from Australia and said he couldn't get it), but this post seems to mention a number of other similar apps: