I found the Mojo docs to be better than most Perl frameworks, but Perl web frameworks, in general, suffer from a severe lack of good examples and docs. There's just not as many people using them as Node or Ruby or Python or PHP or whatever, so you don't find as many videos and tutorials and such for anything outside of the most basic stuff. I think there's also a bit of bias toward expertise; most people still using Perl have years of experience, and so there tends to be a lot less hand-holding, which is a problem if (like me) you haven't followed Perl web development closely, and only have a sort of old school understanding of it. There's quite a bit of "now draw the rest of the fucking owl", situations, for me, in dealing with modern Perl concepts.

But, I like Mojo, nonetheless. It's really concise and does a heck of a lot with a vanishingly small amount of code (it's inspiring to see Perl excelling at something pretty modern, honestly).