What questions would you ask when picking a new datacenter?

What questions would you ask when picking a new datacenter?
Quick reply please.

I would go like ....

1. BW providers?
2. Technichal supports hours over phone & Email.
3. Reboot response time.

1. Power(backup also)
2. Staff
3. Hours
4. TOS/AUP

Just from some stories I've heard, I'd ask about weather or not you're server will be cut off if you burst to your full extent for any certain period of time before you reach your limit..

Edited to add:

By limit, I meant transfer limit..

[Jatos]

Network, is it redundant enough?

cooling
security
bandwidth
global pop's / peers
power
backup
price
support response
switch port speed
cat cables used
ampage allowence