I NEVER rely on figures like those from an HOST. They are close to meaningless. Your quota could be 1000mb, but if that bandwidth is throttled, then you are screwed. IMHO, there are 2 kinds of hosts. Bargain hosts, and quality hosts.
I am not saying that HostPC is bad, or anything like that. I don't use them, so I could not know. What I have found is that if it sounds too good to be true, then it probably is. I have a HUGE distrust of Hosting companies. I have been through far too many BAD hosts. Now that I have a REAL QUALITY host, I would never switch again, unless the situation changed.
Ya get what ya pay for!