I've been using Gigenet's Cloud service since it opened to the public back in May - and I've got nothing but great things to say about it.
First off, the network. The cloud is running on Gigenet's top-notch network; the same network that they use on dedicated servers and colocation. There's nothing more to say, aside from it's great. Always up, no problems.
Reliability is another thing that's great about the cloud. Storage, network, and power are redundant. If something is to go down, it doesn't affect your application.
The cloud is also very fast. VMs run on top quality hardware, Xeon based systems.
Overall, the cloud is wonderful. I give it a 10/10. But what else would you expect from Gigenet?
For reference, my cloud server's IP is 220.127.116.11.