I realize there are issues with getting your replacements, and you can't comment if your replacement is better or worse than your old N7 til you get your new one, but we are going off topic here if we are talking about how poorly the exhange is going. This exchange discussion is more appropriate to other threads elsewhere that are carrier specific.
Let's try to confine the discussion here to how the replacements themselves stack up to your original N7, beyond the safer battery. Hopefully, they don't have any new issues, but this is the place to talk about it, if they do. Thank you.