I would recommend that engineers look to try Django Waffle for feature development within a team setting; it really streamlines flipping features on and off for testing. I think the simplicity of Django Waffle is pretty great, but it may be a limitation for those developing far more complex products.
It's helpful that the tool takes URL parameters into account but that requires the URL structure to be of desired quality, to begin with. This tool is best suited for those working off of solid foundation in terms of web presence
I found Django Waffle to work seamlessly with my Django-native codebase, and the implementation was extremely fast and intuitive. Gargoyle offers a bit more in the way of building more complicated code segments, but it's also more complex to implement. I use Django Waffle for nearly every project involving feature flipping.