[orangecat]

3) Are there redundancies in logic, that over complicate a simple idea.

4) Are they using "common" best practices while developing the code?

Depending on the framework, the answers to these questions are often the same.

[gwillis13]

That is true, but the OP never states what the framework is. So I'm stating ideas of what to look for. Also when I mention "common" best practices, those are the buzz words people like throw around when describing particular points. It's not hard for someone to pick up buzz words, and google their meaning.