Guided access is the way to go, you just need to factor in onsite support when it goes wrong. ? If the ipad needs to be restarted or the App force closed / restarted and you don't want anyone having the passcode you will physically need to go to the device.
we use the app on ipads in a number of communal settings without guided access mode. ? ?We just restrict the app settings page and set it to auto load and therefore its very difficult for anyone to get in to the app to change things. ? We then remove all the other ipad apps for the device leaving only the Creston App on the first page and sign out of app store etc.
its still possible for someone to screw up the ipad but its a compromise between useability and allowing local onsite support.
