Very good hunting @jamebanfield, this is perfect for all those programmers who work on the web every day here I will leave my comments of PROS and CONS.

Pros:

• It has a good interface and is extremely easy to use, plus its registration is completely free.
• It is perfect for those novice programmers or who have any questions. You just have to ask on this website and an expert will respond immediately.
• It supports the main programming languages and also has a revision of code errors.

Cons:

• None for this hunt.