Cloud servers are great, login queues are not so great.
I understand that this stress test is to test out the cloud servers however the fact that you are already aware of the biggest issue makes me worry.
Quote:
A Word to Our Testers
While we encourage as many players as possible to participate in this stress test, please note that this may result in login queues on the applicable cloud servers. We apologise for any inconvenience this may cause and appreciate your understanding.
The main issue this last expansion was the login queues, no matter what you do with cloud servers until this issue is better handled nothing will truly change.
While I appreciate having half the ping I usually have (Playing from the UK to Aether is usually about 140ms whereas this is 80ms.) the fact that the login queues are not being handled at all is a big worry heading towards Dawntrail.