Who doesn't feel guilty about working?
I feel so bad for everyone who wishes they could be a SAHM but can't, yet I don't relate. We could fairly easily afford for one of us to SAH (we would have to cut extras like maxing our retirement, nice vacations, and cleaning service though), but both of us working feels best for our family. It helps that we both have 40 hour a week jobs with only occasional overtime and short commutes.
The only thing I really dislike about working so far is pumping. I would rather be able to nurse my baby in person... otherwise I've been fine. Probably helps I also had a working mom who had to return to work when I was 6 weeks old.