I've been an OR nurse for 26 years now and definitly feel it is the best area to specialize in. First of all, you generally have a better schedule than other hospital RN's because the OR is not usually fully staffed 24 hrs/day. This means less weekends, holidays & odd shifts.
The best part about OR nursing is you only have 1 patient to deal with at a time. By law, there has to be 1 RN per operating room. I like the fact that you are able focus your entire attention on each person for the time they're in the OR, not try to care for multiple people at the same time.
It's not all perfect, but the benefits generally outweigh the negative aspects. The OR is a very stressful & intense area. It's fast paced with no room for error. Many surgeons are high maintainance & difficult to deal with. However, just like with your patients--you only deal with 1 at a time!
Hope this helps.