We use EC2 for everything but monitoring, email, and DNS. The key factor for us to switch from our more traditional hosting arrangements? The fact we could de

We use EC2 for everything but monitoring, email, and DNS. The key factor for us to switch from our more traditional hosting arrangements? The fact we could deploy a new server in seconds instead of weeks. Amazon's non-premium support via the forum is about the same speed as our previous hosting providers. The only downside is that disk writes are much slower than on a normal dedicated server. We had do spread out the application over more servers to compensate for reduced CPU available as well. But even going from 4 servers to 25, we pay less than half what we used to. I highly recommend EC2.