If you find a block, 50.0 ROBO pops in your balance.  Difficulty right now is 100.0, which is pretty tough to mine for most computers... hence the PoW restructuring, which will kick in later today.

I still need to write some bits that compute the local miners hashrate...  I'll make sure to do that by the next release.  For now, open the task manager (or equivalent) and look at the CPU performance.  If your CPUs are maxed then you are mining.