We've been using AWS since nearly the day it was released. Overall I really like it, but I haven't dived deep into the GC platform so I cannot really give a definitive comparison.

A couple of things that baffle me about AWS though -

* You can purchase reserved instances from anywhere in the world in a few seconds, but WHY when I want to on sell an unused reserved instance in the marketplace, do I HAVE to have a US bank account for Amazon to pay my revenues into?? Why can they just not credit my existing account which I pay thousands per month to them?

* We still battle with occasional high latency spikes for EC2 instances talking to RDS instances within the same VPC! Continuous "MySQL server has gone away" log messages. Ironically, we have absolutely no trouble with Non-VPC EC2 instances that use classic bridging to talk to the same RDS server within the VPC!

We thought to simplify our architecture by putting everything in one VPC for better security and ease of maintenance, but had to go back to a cobbled half and half solution to maintain performance. Hence why we now have a few reserved 'VPC only' instances which we cannot recoup costs by onselling in the marketplace... :(