I went to this lab for cross processing after going to the Lomography store for prints. The rolls at the Lomography store are sent out to other labs, at least they were when I went there in Fall 2009, and they came back greyish and green. Not at all what cross processing is supposed to look like. They explained that the lab must have tried to correct the prints...
The C Lab did an amazing job on my film for cross processing. The colors popped, they were vivid, and I was so pleased with the results. They were amazing!
They are a little on the expensive side. For crossprocessing development ($10) with a CD is ($10) so around $20 total. If you want prints, they will be more expensive.
If you pay them right there, they'll give you a discount. If you don't like any of the pics or they didn't turn out right, you can give them back, and they will give you a refund for your next visit (if you've already paid)...
Pros: Cross processing is awesome, pics were great
Cons: A little expensive