I had some issues registering with AWS, and they called me and we sorted things out. It took more than a week to fully register, as opposed to Google's GCP where I didn't even need to think about it.
Not him, but I’d say the user experience is awful compared to others and your money isn’t safe. They hide lots of useful things, they can steal your money any time, and it feels extremely mentally taxing to deal with issues like them randomly breaking things or locking your account. It’s comparing a modern iPhone to the first edition of android, so much work, so slow, so unnecessarily complex to do simple things like unlock your account when they lock it randomly.