The only thing that the application won’t let you do is upload pictures as you normally would from your iOS or Android device, but other than that, you'll be able to see your profile with all of your followers, choose to follow or un-follow someone, etc.
You'll also be able to view the most popular pictures and, an important detail, you'll be able to see them in a higher resolution than on your cellphone.
Instagrille is a great application for Instagram users who can now follow their accounts from their PC's. Plus, it comes with a notifications system that will let you know each time something new comes up.
You must have Pokki installed in order to use the application.