Does a 3D ultrasound ruin the surprise?

So I've been going back and forth on whether or not to get one. I am so curious to see more of my little girls face, I haven't gotten many good profile shots of her, only one at the anatomy scan and even that wasn't that good. I just want to see her so bad. But then part of me wants to leave it to surprise. Ugh!!! I have one scheduled for next week and I can't decide whether or not to keep it. I was SO EXCITED for it but my boyfriend thinks it would be better to just not do it. I can't make up my mind either way. Those of you who have had one and then had the baby do you think it ruined the surprise of their face?