We took them to the local cosmotology college, and think they did a nice job. The only thing that made me less than happy with it is that they took off way more than they needed on Kate's. Her ponytail is over 12" long, and they only need 10" for L o L. If the girls want to do it again, I'm taking my own ruler. Thankfully the student realized that the comb was longer than 6" and pointed it out to the teacher before they cut Ellie's hair - she didn't have the extra to spare. :-)
Big bonus - it ended up being free! Though I asked when I called if they did comp cuts for Locks and Love and they said no, she said when they got done that there would be no charge. A wonderful extra blessing.