Unlimited hosting is both good and bad. It's good because you can store a lot of data for safekeeping or later use. Or overall daily usage. The bad part is that it can also gain a lot of clutter. Especially if it's shared hosting since someone else is also using the same server. So if you're not a 'web hoarder'... they might be. Er go your site will suffer because of their sloppy behaviors. Shared hosting is never a good thing. You're not in control of your own destiny.