This app has made it way more enjoyable to check in on my Instagram feed, from my desktop (iMac). Great layout, love how you can change the size of the "gridded" thumbnails to suit your screen/taste. You can Like, Comment, and Follow/un-Follow, from within the app. Can think of only 2 things that would improve it for me: being able to post images from the app (but, like previous reviewer said, thats Instagrams fault, not Grids), and would be nice to use the keyboard shortcuts most browsers have for "previous page" ( command + [ )
Otherwise, love it; definitely worth $2, will continue to use this app every day.