Pros :

• A good way to do research personally
• It is powerful yet has a very simple user interface
• It does minimize time on your reearch which really saves alot of time searching wherein it is connected with around 25+ search engines simultaneously that can be easily be imported into your library with just a use of single click
• It is designed to be integrated to your mac where it looks good and feels good at the same way
• You will get more organized by just doing simple drag and drops on your research material
• It will keep your personal library synchronized across on all devices which you can cloud sync via Dropbox or local Wi-Fi network
• IT can be your personal note where you can easily organize, export and even read your findings

Cons :

• Only available on Mac, iPhone and iPad
• Can only use 30 days free, beyond that you need to pay