Love it! I love the view and the way that you can expand out the lifetime of a certain project. It helped visualize workflow by the person on the team or changed to work to be done by the client.
I like how Planyway works with Trello. It allows me to organize everything easily. I use it to see how is my team's schedule and how many hours they've worked. It is useful for my reports too, since I can organize my jobs by labels.
It's very useful in terms of keeping track of time and knowing what jobs I have to do and when to do them. It's also helpful as I can see what my teammates are doing and whether they have too much or too little work on at any one point.