The site's content and ability to learn is great; however, it's difficult to learn when you can't advance due to server overload issues. For a site that lists many investors, this seems like a fundamental SaaS company priority. I would like to continue using it in the future but this needs to be fixed. I understand this is a free product to use but there are still operational benchmarks to be met. If it helps, I was using the Python tutorial and saw the note on that tutorial and a few others that have this issue.