I spent alot of time evaluating both pixevety and school bench and am using Pixevety.
You cannot operate a school without one of these applications.
It is not an overnight success, onboarding takes time, you need to work very closely with ICT and training staff and yourself as a user is also very costly in terms of effort.
But benefits outweigh everything. Suggest you have one person in the business that becomes the champion of it in terms of how to use it effectivey.