What do you like best?
Easy to setup and introduce to the team. It is easy to start thanks to integration with Google Apps and others. Whole team is ready to use Calamari right away. The best feature is to check how many days you got left, so you can plan you next vacation. From the manager point of view, you got calendar that shows you each day with team presence.
What do you dislike?
Not so much. UI can be modern, all it can be customized for company brand colors, not is only green. To setup custom leave rules you need to dig a bit, but after a while you now how to do that.
Recommendations to others considering the product
Just try and see if it fits your need.
What business problems are you solving with the product? What benefits have you realized?
Leave Managment for my team. Easy to track holidays for my team. Before that we use Excel, which was super easy to start, but was har to colaborate.