I like how great this is for the customer. It simplifies the visitors experience and guides them efficiently to what you can provide for them.
Customer service is very polite and demostrates very good response times. A further improvement in the Search functionality will definately improve even more user experience.
You can view all options. There is always a good feedback and they are developing a lot of new tools to improve and it becomes user friendly.
Drawback is perhaps the bad interfacing with other systems, but this is in the roadmap of Proxyclick.
I dislike that the kiosk only works on iOS or web browser it really needs an android version of the app.
Possibly include a quick shortcut to log book for emergency purposes. For example in the event of a fire a quick register can be published at the click of a button.