The free has unmetered space and bandwidth. However it does come with an initial limit which you can request to have removed when your account is at least one week old and you otherwise meet the requirements.
Memory is quiet limited, hard to host dynamic scripts. I would only recommend static pages for free hosting, or everything would have been waste of time. If you want to host forums or big blog, then look for shared cheap hosting else where or buy premium. Just my experience with free hosts, there is no such thing as unlimited everything anywhere.