How common are problems with iCloud Drive?

My iCloud is working (any apps using Cloudkit) but I am very nearly a month into problems with my iCloud Drive. I noticed that a small Numbers file I'd created on my iPad never made it to my iMac. After a few days, and spotting that if I went to iCloud.com I just got errors when I attempted to access iCloud Drive or any of the web apps (e.g. Numbers) that use it. I raised a support issue and in the course of a day it was escalated to a senior who quickly confirmed the issue was at Apple, not on my devices, and escalated it to engineering, who quickly escalated it internally. They locked my iCloud Drive. That was all on 6 October. Since then I have no working iCloud Drive. I've had to set up a parallel system and it's a nightmare. I have no idea what the problem is, how long it might take to resolve or even if anyone is actually working on it. I keep going back to my senior support guy, but he just emails engineering and gets zero response.

Am I the customer Apple hates or is this sort of thing happening to a number of us? Something going wrong occasionally is normal. Taking a month and still not reconnecting a customer with his files on your server and not even giving updates in that time should not be normal and is utterly unacceptable, as is no means to effectively escalate this to someone who can at least tell me what is going on.

I've found one journalist who had a very, very similar experience and never, despite going to the press office, found out what happened. I see lots of complaints about iCloud services here, but not this. If there is some fundamental issue with iCloud Drive that takes a month to fix when it happens, users need to know that.

So, the question is, has anyone else been here?