I use AWS Workspaces for several things:

As a AWS-secured bastion host to connect to my infra.
As a "research machine" that I can use its upstream and downstream speed to do google searches, computations and downloads (only my 1Gbps office network beats their ~500mbps downlink speed; articles load in the blink of an eye; any download is almost instant).
An alternative development environment to test my tooling (how does that electron binary work in windows?)
A secure backup medium.
A mini-staging environment that also has great connectivity.
And an extension to my current Desktop.
And more…

Their desktop client, especially for Windows, work amazingly well. And they deliver what they promise. Amazon WorkSpaces

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