One thing I can say, Microsoft hasn't changed a bit. It's a Win98 experience in the cloud.
Now we are fighting Microsoft silently blocking entire ASN of Airtel in Nigeria, and:
1. First, obviously pretending having no idea what are we talking about, and bullshitting us
2. Then not acknowledging. "We checked it, everything is fine"
3. When faced with traceroute - "Maybe it's a third party network provider"
4. When faced with WHOIS record - "I don't know what really to do"
5. "When faced with "this is the last day we are using you" they finally escalated it, and then "It's our DDOS team doing, we have no bearing on them"
6. So, you see it's their official policy to bullshit clients. They clearly knew something from the start, but tried every diversion, thinking they are talking to some $10 per hour anykey man.
Soon found out that Azure silently blocks a big chunk of third world ISPs, and other small datacentre providers without an option to appeal.