I really like the idea of Paperspace and I've tried to get going a few times on the free plan but I hate notebooks. I didn't fully understand the server + gpu offerings, which is what I want. I would love it if I could just get an IP to scp some scripts to, then ssh in and run them. I don't think it's possible to get billed only for GPU time when you're running it this way though, so it would be pricey to keep the server up.