I have been using them in China mainland for 2 years.
Base services are OK (computing, object storage, load balancers), CDN is actually quite good.
They are rolling out new services very quickly but the quality is still far from the AWS standards and feature rollout is slow outside of China (for instance, no way to replicate a bucket from Europe to Hong Kong).
Support is cheap, quite reactive but not very helpful.
ruby SDK is not very helpful (wasn't translated in English until recently, last upgrade removed the object storage SDK from the unified CLI to a dedicate one which is still in beta...).
So it cannot really compare with AWS globally, but for China mainland it might be the best provider. And they are moving very fast.
Base services are OK (computing, object storage, load balancers), CDN is actually quite good.
They are rolling out new services very quickly but the quality is still far from the AWS standards and feature rollout is slow outside of China (for instance, no way to replicate a bucket from Europe to Hong Kong).
Support is cheap, quite reactive but not very helpful.
ruby SDK is not very helpful (wasn't translated in English until recently, last upgrade removed the object storage SDK from the unified CLI to a dedicate one which is still in beta...).
So it cannot really compare with AWS globally, but for China mainland it might be the best provider. And they are moving very fast.