Hotel Management Built in App issues

Hotel Management Built in App issues

Hi,

     1. There are many flaws in the Hotel management bulit in app.we are not able to completely use it or refer it to cumstomers.
2.(Eg) in the subform the "Mandatory Fields are Hidden" . When I fill the form and Submit, it throws an error that fields should have value. In this scenario how can an user fill the forms?.
3.This app is not full fledged and ready to use.
4.Have you completely tested it and checked or not?