If you want a customizable solution that can be adapted for just about any scenario, I recommend using Notion. If you need a solution that's easy to share with people outside your organization, Notion is great and allows individual or team permission-setting. If you want a turnkey solution, Notion might not be the best since it requires a fair bit of set-up. There are templates that can be purchased to handle this, but I haven't found them very helpful.
It's great for everyday use, whether you adhere to the GTD regimen fully or just need a way to quickly capture and sort your tasks. However, it may be less suited if you're looking for a task manager that lets you collaborate with others or if you want to visualize your tasks in other ways, like a Gantt chart.
I use Notion on my personal tablet, and unlike on the computer, I have a lot of difficulty editing backgrounds, GIFs, and page dividers. It's not as user-friendly, and often the elements end up cut off or misaligned, which is frustrating.
While the current calendar feature is helpful, I'd love to see more customization options. The Google Calendar style isn't always ideal, especially for tasks without specific times or for ongoing projects that require daily maintenance.
It would be fantastic to have more flexibility in customizing Notion pages. For example, I'd love to create planners with the freedom to add illustration boxes, stickers, or GIFs without being restricted to a fixed layout.
Very easy to use (I learned how to use everything on my own) and I was able to set up an entire ecosystem without any courses or other tools. I often say that Notion is like Lego for adults, because there we can use all the available tools to create a multitude of things, from funnels to projects with calculated deadlines and tags.
The interface of Things was good 10 years ago, and has been refined ever since. It's lightweight, while still being readable and showing just the information you need to see. Also, something I haven't seen in any other (of my) app(s) is the keyboard shortcut/launcher, where you start typing a letter, and a dropdown menu lets you quickly jump to a view.
The company uses both Notion and Trello within the company. Notion is more for North America employees while Trello is used between Operation team overseas and in North America. Sometimes it's a preference of how the tools look like for project management. I would say both Notion and Trello are nice tools and serves our needs.
I've tried numerous to-do apps, some that never even go out of beta. But I kept returning to Things, mostly for the user experience. It's unobtrusive and fast to use, and it looks fantastic, which is more important than I first realized. To become more organized, my app of choice needs to look organized. Also, many competing solutions are trying to force you into one way of using their app, while Things feels more open to letting you define your way of working with task management.
