IME there are a number of pitfalls that will need to be carefully considered.
In a school I used to teach in, some students would sell their iPads to make cash - what is the replacement for this? Or any broken ones, stolen ones etc.
How strict are controls? Are staff able to carefully monitor and re-enable controls if necessary? Has the school factored in additional costs, such as app subscriptions, anti-virus subscriptions, maintenance, replacement costs after 6 or so years when the iPads fail due to age, additional insurance, server capacity, cloud storage, technician support?
Have staff had enough training? I'm forever being encouraged to use my iPad more efficiently, but I have had no training and am figuring a lot out as I'm going along. Doesn't mean I can necessarily trouble shoot in the classroom when our students are, again, unable to use their own iPads.
On that note, how much training have students had? We assume they're pretty tech savvy, but you'd be surprised how many don't have the faintest idea how to actually navigate tech other than a few online games.
Has a thorough risk assessment been done? It's well-known by now that long screen use damages eyesight and I can see a fair few lawsuits in the future when we have a generation of children who need glasses.
Is there a plan for offline work in the case of wifi outages?
Going paperless sounds great, but is a hell of a lot more expensive than the alternative.