Mine works away from home monday - friday, but he is home every weekend, so it's not quite the same. He works every week though, so he doesn't spend long periods at home.
I actually quite like it - although I'm not sure I'm supposed to admit it

He works a lot anyway, so when he was working nearby he was never home until kids bedtime anyway, and it's not easy to build routines around that. With him being gone during the week, the kids and I have our little routines, and then after the kids go to bed, it's my time. I really enjoy the time to myself, and being able to watch crappy tv without him moaning about it, or have friends around for a good gossip! And I think we make more effort when we do see eachother, because we only have a certain amount of time each week.
I think the only downside it that you get very tied to the house, I can never do anything in the evening without getting a babysitter. Luckily I have some awesome friends who come around and keep me company though - and my parents live only 20 minutes away, and they are pretty good with the babysitting. Also, it really annoys me when he is home for a longer time, like at holidays, - he messes up all the routines
Seriously though, as long as you keep talking every day I think it's fine. We use Skype a lot, and we have mobile phone plans that gives us free calls to eachother. One thing though - I work full time, so I get to spend all day with other people, if I was at home with the kids all the time with no adult company it might drive me slightly mad.