Good things: You can attach files to tasks. You can add tasks to your calendar.
Bad things: Interface is really busy, but the task list doesn't show the due dates or status until I click on the task. Due dates are the most important part of a todo app for most people. Status only has two options: Active and Complete. Needs to have an On Hold option, or better yet, let people customize the status dropdown in preferences because there can be a lot more (Billed, Overdue, etc. Especially if you are freelancing and need to keep track of what clients you already billed and haven't paid). Web link field won't automatically make something a web link — you have to enter https:// before any url you put in or it disappears when you click out of the field and you have to enter it all over again.
My assessment is to avoid this for now until the dev revamps things.