If your firm is doing patent work for Google or Amazon then you may prefer to process applications on their cloud, or you may have other reasons for preferring one cloud service over another.
The proofreading results are the same on either cloud. The only difference is that your patent documents are processed entirely within your selected cloud and then discarded.
We can also set the default cloud on a per-subscription basis. Please contact us if you would like us to set a default cloud for your subscription.
We'll soon be adding Microsoft Azure as a third option, and we are also looking into on-premise options. Let us know if we should consider other cloud options as well.