It's very easy to roll up your sleeves and get started - not much of a learning curve. Very helpful for initial diagramming, love the axshare ability to quickly share with colleagues.

The ability to easily create pages and interactions using a familiar layout of libraries, pages and actions. These features allowed for the creation of a fully functional prototype, plus additional conditions can be applied for even more realistic scenario development within the prototype.

Highly functional, lot of good features, easy management of designs, very easy collaboration