I'd like to hear from those who have used Exchange 2007 in the real world for more than 3 months please. We've got a client who is still using Windows 2000 Servers and Exchange 2000. We've been pushing them to upgrade and they are now moving slowly into that consideration. So, I don't think I should recommend they upgrade to Exchange 2003 since it will be falling out of support in the next couple of years I'd think.
So I was wondering:
1) How much of a shock (learning curve) might it will be for their in-house administrator (we just help him admin the place) to manage Exchange 2007 if he hasn't even seen Exchange 2003? (I'm just looking for general opinions here)
2) How well do you like Exchange 2007 overall compared with Exchange 2003?