The questions are:
What EXACTLY are they going to do in this time?
Do you get an initial assessment?
Do they provide ongoing metrics about your servers?
Do they make recommendations based upon their findings without you asking for help?
If they simply say "we monitor", then you need to ask what they monitor, and what they do when something appears wrong.
You can probably just read it here.
These folks are a DBA outsourcing firm.
Michael L John
If you assassinate a DBA, would you pull a trigger?
To properly post on a forum:
http://www.sqlservercentral.com/articles/61537/