If you're going to test it out, consider signing up through Parsec instead of Paperspace. Paperspace provides the servers/GPUs and Parsec provides the game streaming software. You can sign up directly with either of them and get the same product, but if you go through Parsec, you can manage everything from within the Parsec client. More details on the differences:
https://support.paperspace.com/hc/en-us/articles/11500271809...Edit: Also, Paperspace targets other markets besides gaming; if you're doing any sort of project that requires a GPU, they're worth checking out.