Alex Harden: I’m actually tempted to roll my own Planet and call it a day
What would it take to convince you? ;-)
At the moment, it is a matter of downloading, editing a config.ini, optionally tailoring a template, and finally scheduling the application to run.
As I run planet locally, I also have an additional step where I upload the results.
Something that might make it easier to get started is a bundled simple web server that allowed you to adjust the configuration, and add and delete subscriptions, all from the comfort of your web browser. It could also optionally upload the results to your hosting provider, or even serve up locally the aggregated pages that were produced.
Another thing that might be useful is a collection of templates to start from.
I suck at UI, but I could produce something minimally workable if somebody was interested in producing CSS for it.