I recently tried Blue project management platform, and here are my thoughts: I have experience using Nifty and Morningmate; both of which were AppSumo deals.

Lets start with Positives
Generous User Limits: Blue allows for a large number of users, making it suitable for teams of various sizes without restrictions.

Unlimited Storage: The platform offers unlimited storage, allowing users to upload files up to 5 GB each without worrying about hitting limits.

Amazing and Well thought Automations: Its amazing to see the categories provided for automating the workflow. This definitely is a game changer

Decent Wiki and Document Experience: It provides a straightforward way to create and manage documents, which helps keep project information organized.

Negatives
Evolving Collaboration Features: Basic collaboration tools like chat and comments are still in development and can be lacking.

Mobile Functionality: The platform does not work well on mobile devices, which can be inconvenient for users who need access on the go.

Support: Support to me has been slow, a but unresponsive in terms of SLA. There is no defined SLA at this point and it depends on when the team can get to the fixes. I think the team's focus is on adding new functionalities than making the existing features to work flawless.

1. I had to deduct one taco for the lack of notification services still not fixed and the Activity (comments) for each records not being displayed on mobile.
2. And one taco for the overall user experience.

However, I wish that the product becomes more matured in a year to meet the standards of other similar collaboration tools.