FWIW, not the OP but doing a guix pull after getting it from APT took several hours to crash out every time I wanted to just try using guix for something, and the ISO to install it from upstream was multiple gigabytes which seemed wild. I put a couple days into it and never actually got to try it.

It's hard to have an opinion of a platform you haven't used but based on how bloated just starting it seemed to be I was unimpressed.

> the ISO to install it from upstream was multiple gigabytes which seemed wild.

For the record, the Guix System install media is less than 1 GB. And the Guix installer from upstream looks to be 100 MB right now.