I really liked how easy it was to use this app! It's very user friendly for my customers who have limited experience with technology in general - they were able understand everything straight away without any problems (and that includes me!). The only thing i would say is maybe make some more options available as there are certain things you need an explanation about which could help people out if needed but not necessarily included within its current set up/options? We've used other apps before so we didn't find anything wrong specifically however all our staff found using them quite enjoyable too :).