I tried it out a few months ago, but it wasn't for me. I mean, I liked its photo editing features, but the social aspect of it didn't appeal to me at all.
I use it all the time, it gets more fun once you take photos more often.
Do you like twitter? I've always said its like twitter but with pictures. not exactly the best comparison but i guess some people like it more than others
I use it a ton. Have around 800 photos uploaded. Great for sharing pictures with family and friends instead of all pics that people post to FB get mixed in with all other posts.
Should be interesting now that "facebook camera" is out. I find it interesting that instagram now has buzz. I've had the app since it came out in 2010. It's a pretty neat app that takes getting used to and is quite fun.