I like that it's very easy of use and has many features such as comments in different colors etc.. Sometimes when you have multiple people commenting at once or trying to change something they can't because there are too many things open so this takes some time! Make sure you spend enough money if your not going into business with only $100-$200 budgeted per month. The ability to comment on images using color coding, which helps keep track of what changes where made by who. This saves a lot o work later on making edits and correcting mistakes. It allows users from all over the world (including outside US) without any restrictions to view our project documents online - no need anymore to send them across email/ FTP servers ect. We're able to easily collaborate and share edits together instantly instead of sending emails back n fourth between each other just to make small adjustments we've already discussed before hand.