Just went on a group trip and we used this for all bills and took the accounting headache totally out of the trip. No one cared about covering the tab and we all paid our fair share without worrying about splitting checks. One feature request: we love that you can do bills in different currencies, but would like the functionality to be able set an exchange rate and keep the running tab in one "home" currency. A multi country trip can get complex when we all owe each other different amounts in different currencies, and a conversion function would help.
Joey3644($& about Splitwise