i cant really say for i haven't experience something like that yet, there always be obstacles that would come in your way, but all i can say is that nothing would be to hard for the one i love..
It probably is because arent humans supposed to be so fragile that if a Vampire just tried to touch us without being cautious that they could crush us? and not to metion having to be careful not to cut yourself but i do think it would be kinda exciting!!
I think it'd be very hard. If you've read a little bit of Midnight Sun, Edward talks about how it's painful, the dry, burning in your throat when they try to resist blood. And if you kill someone, you have to live with the guilt of killing that person and ending their life.
Twilight, Edward explains how he had lived alone for many years, waiting for his mate to come. To spend all those years, alone. That's a tough road.
So yes. I do think being a vampire would be rather difficult. The cullens are different than other vampires. They use what they are given. Their special abilities, they use them to help others instead of tearing them down. I don't consider them vampires. I can't.