It has a ton of features for a very reasonable price! The ability to translate articles across multiple languages and keep them all in line is clutch!

Customization options are better than others.

Helpjuice has numerous amount of features and convenient level editor, and it does not feel overwhelming at the same time. Version control system is quite versatile, built-in translation feature also helps a lot. Helpjuice support staff is also worth mentioning, they are quite fast and responsive. They can help out and implement pretty much any fix you would like to see.