Confluence

Real-time simultaneous editing
Ease of finding and organizing what I've written
Constantly adding new features
Integration with Jira and Trello is great, but also works as lightweight project management by itself

Honestly, they've fixed my biggest cons, like storage space (now you can buy a bigger plan) and they keep adding more things.
I think my colleagues would say there's still a learning curve, which is understandable, and I think Confluence has been changing the interface with more tips and features for new users (which is sometimes confusing for long-time users like me, LOL)
One big con is still the limited integration with MS Office. Confluence fully replaces the need for Word in most cases, so that's not a big deal, but I wish the Excel integration and/or the table functionality was better.
Also, printing is pretty tough when you have tables.

Atlassian Confluence is a platform for teamwork and information exchange that has helped our company greatly improve its operations. The platform is accessible to all users and features a straightforward interface, enabling our company to set up shared workspaces where employees can efficiently complete a wide range of assignments. It's steady, and it's facilitated the simple expansion of our holdings.

There was a difficult learning curve for some of our less tech-savvy consumers to become proficient on the site. Some users may find it inconvenient that customer service is only offered in English.

It's incredibly simple to work collaboratively and provide feedback on written documents using this platform. Its "wiki on steroids" approach is particularly effective for overcoming writer's block, allowing users to start writing without hesitation and continuously improve their work.In addition, the tool's seamless integration of pages and information, as well as its ability to connect with Jira and extract relevant data, are noteworthy.

Many essential features are only accessible through paid plugins, which is disappointing. For instance, the team calendar should be a standard feature available to all users.Furthermore, the administrative features are often difficult to use and unclear, particularly for larger organizations that require a greater degree of granularity.The pricing model for the plugins is also problematic. For example, users are required to purchase a license for each person on the platform, even if only a small number of individuals will use the plugin.