Golem is indeed a great concept, I have been running a client for some time and earned like 1 GNT from it. Setup is still a little clunky on a Mac since you need to run command line scripts but once installed it is fine.
Right now there are more miners than requesters though, this is why you are not getting too many tasks as of today.
There are so many computers in idle mode across the globe, it is a great vision to use these for something useful.
Thank you ..