I'm surprised to say I actually enjoy navigating the Android app even MORE than the website. You can repin, like and comment simply by tapping a picture, and sharing with Facebook and Twitter is a breeze. The search menu is awesome and the app is smooth as buttah.
Honestly, compared to sites like Reddit, I tend to find the content on Pinterest a bit superficial (how many photos of gazpacho and cupcakes can you really handle, anyway?). But every now and then, I find things on the site that really inspire.
The app is free, so what are you waiting for?