Kicad is not easy to use. I would recommend designspark PCB (free but not open source) for now if you just want to make PCBs. It still has some crazy quirks but it gets most things right (unlike Eagle).
I don't know. I recall a friend telling me he had somewhat of a bad experience in the past with Designspark. He said something about a lot of inconsistent crashing and if he didn't save it once in a while, he'll lose quite a bit of progress on his board.
However, that was over five years ago and was on a Windows machine.