This is an awesome library, and seems to be very vibrant on Github.

If you're looking for something commercial (and paying for something commercial) however, I'd probably recommend one of the step by step tutorial tools that allow you to build the walk through using a visual editor, and without having to add code for each individual walk through and tool tip.

This is one of those cases where I just want to add a short JS snippet to my site, and allow product / marketing to customize and fine tune the tutorials and on-boarding without developer involvement.