I think it depends on what service you're on. Since most people do aways during the summer, if you're on the trauma team your schedule will be similar to your friend's. But if you're on the hand service, obviously it will be much lighter. I only did one away rotation and spent most of the month on trauma and my days started at 5am everyday and lasted until 6pm at the earliest and 1am at the latest. However, I think it is beneficial to be on a busy service because it lets you shine. Your goal for an away is to make them want you - the best way to do this is to work like a dog without complaining and while being friendly and pleasant to work with. If you work your ass off, demonstrate good orthopedic knowledge, are friendly to all ancillary staff, and fit in well with the residents, you are in. It's a hard month, but definitely worth the work if you can make that kind of impression.
You would be surprised how many rotators don't take advantage of the opportunity an away provides - they ask if they can go home, don't volunteer for call, try to get out of work, etc.
That's my 2 cents...