I have let my two underage sons mine Molecules respectively on a laptop and a MAC. I think they have been making up to 500 molecules each, every day since Christmas.
On the MAC they had to compile the miner from a guide we found by googling, and they learned a lot from it. Much better than playing computer games all day during the entire Christmas holidays...
I truly believe MOL will become worth real money in the future, given the parameters it has and the situation being not preminted. In addition it hasn't been ruined by being introduced on an exchange too early, and the early-miners/profit-takers factor will hopefully be stabilized before it happens.
The energy costs can be neglected if it's winter where you live and you use electricity to heat up the house anyway.
![Roll Eyes](https://bitcointalk.org/Smileys/default/rolleyes.gif)