Will getting the 1GB Data Share Plan the right choice for a iPhone with At&t?

I was wondering is it a right decision to choose the 1GB data share plan, since there will be only one line on the account? I don't know if that will effect my speed or what, I'm just trying to choose the right plan for an iPhone that will be the only line.

It depends on what you will be doing with your phone. 1 GB is a lot of text, pictures, internet usage, etc.; but not a lot of capacity if you want to view videos. I have a Droid 4, and I rarely use 1 GB without going to Facebook, Twitter, etc… I'm sure that if I did, I'd probably be using 4 GB a month…

Nope.sharing is the problem because you would have to be careful what you do and they do too. Just get unlimited data plan with no sharing.