I have an Iphone 5 and I too bought a case for it as well as a screen protector. Can't say my phone has been bounced around or fallen much but it has happened. I haven't had any problems at all.
I thought I'd miss a landline but am not sorry at all that I got rid of it.
TIS
I do not think I can name one person I know or want to talk to that calls my landline these days.