Great for teaching coding classes!

After you get past the steep learning curve, GitHub is definitely a tool that helps you be more efficient. It is an industry standard, and I would consider it a step above all of its other competitors.

Pros

I work as a software engineer for a large consulting company, but as a side job, I teach a programming class. I use GitHub to share with my students all of the sample code and slides that we work on during our classes. To me, one of the most important features is being able to work on my projects on multiple devices, than span across different operating systems. I have a two laptops (one of which is a Mac!) and a desktop computer. With GitHub, I can quickly sync my code and documents between devices and seamlessly pick up were I left off. If I ever make a mistake and need to go back to previous versions of my slides or code, I can quickly restore them with the excellent versioning features. For my students, it is very freeing knowing that every project or problem that we solve during class will be immediately available to them right after class. I helps them concentrate on learning and understanding the programs instead of having to copy everything to their computers.

Cons

The initial learning curve is high... specially if you are new to code collaboration tools. Newcomers usually spend a long time learning the git commands, and how they can solve problems. For newcomers, I would recommend the GitHub Desktop client (even if it is frowned upon by more experienced devs), to get a hang of how the branches, commits, push, pull and operations work.

Essential Tool for Every Developer

Github is absolutely essential for every developer like me. I have been using Github daily for more than 2 years and it is one of the most polished tools I have ever used. After we spend some time learning about it, Github can be very intuitive. It's small features like directly copying code from files just by dragging it to its interface, or that it renders CSV, STL explains how polished it is.

Pros

Github is the most famous git services available online - I personally don't know any developers who don't use Github. This in turn makes Github essential to any developers as many people share codes and stuff through Github. I don't know exactly why but developers nowadays seem to prefer to just put their work in Github. Thus GitHub hosts almost all kind of open source projects which I love to fork and play around with. I personally think it is very productive. It has a good and intuitive User Interface which makes viewing information and reading code easier. I also feel Github is stable than other alternatives available.

Cons

I don't think there is much to dislike about Github but I think it isn't very easy to use for a beginner. I spent a long time learning about Git commands and stuff. Other than this, I can't think of any cons.

A software you don't really have a choice but to use.

I use github for version control at work. Our code goes up to two different sets of reviewers and this all takes place via github.

Pros

Github is really your only choice for version control. There are other platforms out there but Github has cornered the market. It's free, which is a bonus.

Cons

It's pretty difficult to start using. It's not intuitive at all. Many times, I have merge conflicts and when I go to edit them within github, it corrupts my branch. There are a lot of ins and outs and nuances that aren't easily navigated around when utilizing Github. I frequently get errors that have no documentation or support.

An essential tool for any developer

GitHub is probably one of the most polished platform in existence. I continually evaluate contenders but have yet to find one that offers as much value.

Pros

GitHub makes managing Git repos a lot easier by providing a fantastic UI and a solid infrastructure. I also love the Package Registry service which fast, reliable, quick to set up and use, and has a fair pricing plan.

Cons

There is very little to dislike about GitHub. I'd like to see more work towards code monetization (for instance by creating a unified platform that takes care of licensing and payments)

One of the best git services out there

We use it to share a repository with a Unity project (games for mobile and PC mostly), and it's really been helpful for us since our struggles to collaborate due to Unity nuances in particular, helped us to learn how to build better code that's maintainable on a team, this things are often overlooked on one-man projects. By Github being free and world renown it's quite easy that colleagues already have an account, thus making it easy for us to give them access for a code review, game-jams or collaborations in general.

Pros

Github is world renown, it's been making my life easier for years. We mainly use with colleagues or friends to work on game development projects, and it's easy to use even for non-coders since they include a Windows and MacOS GUI out of the box, and it's compatible with any git manager out there. They recently added the ability to have free private repositories, which are great.

Cons

The fork and pull request process designed to propose changes on third party repositories seems a bit troublesome to me in particular, but I understand why they did it, and I just got used to it.