After a lot of cold-calling, we found a 120-year old sukiyaki and shabu-shabu restaurant chain. They told us they always survived by adopting the latest technology, and were willing to try our product. Most of their staff were elderly women in kimonos, many of whom had not touched an iPad before. We were worried they would struggle, but after a few training sessions they got the hang of it--soon they were greeting and seating customers with no problem.
12 years on, we are at 13,000 restaurants on our platform and adding a few hundred more each month!