NOTICE: This program hasn't been updated since January 11th 2023. I still recommend it, but purchase at your own risk. The latest version does not have a whiteboard, you need to opt into an older version via the beta menu in the properties.

A wonderful project planning tool that can be used for a variety of different projects.

The UI is neat and fancy. It's very clear to tell everything apart. It's pretty easy to use the different cards, and they mesh together well without much hassle.
The freedom MasterPlan gives you is vast. You can make the cards as big as you want, change their colors, and switch the type of card they are. Most cards let you modify them within the card as well, there's no menu popup, which is convenient and underrated for me.
It's easy to keep track of everything, and you can also make sub-pages to further segment your project.

There isn't much bad I can think of, but as of writing this review, there isn't any kind of team create mode, so there isn't an easy way to collaborate with other people. This doesn't bother me much, but it's still worth mentioning.

I hope this gets more updates. This tool is really good, but it would be better with a few updates. Regardless, I think this is a nice tool, even without the updates it used to get.