I have been using Trello for a couple of years now and I must say, it's a great tool for organising tasks and collaborating with team members. It's simple to use, has a nice interface, and the mobile apps are great for on-the-go productivity.
One of the best things about Trello is its flexibility. You can use it for almost any type of project, whether it's a personal to-do list or a complex team project. The ability to create multiple boards and add unlimited cards and lists makes it a great tool for keeping track of everything from the big picture to the minute details.
However, while Trello is a good tool, I don't think it's the best option out there. For one thing, the free version is quite limited in terms of features and functionality. You'll have to upgrade to a paid plan to get access to things like integrations, power-ups, and more. Additionally, I've found that Trello can be a bit slow at times, especially when you have a lot of boards and cards.