It is a great piece of work goldarn it! Use it please. From the initial set up process it is fast, in fact there really isn't much you can't do if you set your mind to it. I primarily use it to create a help section for a website and it has been breeze, adding and image is simple, formatting them just as simple. And it looks and feels great when your using it.

Wagtail has been developed with the web manager in mind. It helps simplify the management of complex websites. Thought has gone into everything from how Wagtail features are labelled to predictive text for image searches. All these little things help to save time. From an interface point of view, I'd liken the design to being something Apple may produce. I find some of the well established CMS solutions cumbersome, slow and confusing. Bolt-ons and extra modules make the experience far from seamless and bug ridden. The website we had before was built on Concrete 5 and we had many problems. With Wagtail there may have been one ... or even two in a year. But nothing more. This gives confidence in the robustness of the code base. I also like the fact that new and exciting websites are being built on it., like: http://www.destinationspace.uk/ .