Is not this more for construction sites to manage tool inventory? Sounds like this system provides value over having tools constantly stolen or having to manually manage them, possibly needing another person.
Not sure if most of them even work Sundays.
We use SalesForce at work, and it does go down for maintenance every few weeks. I guess it might be annoying if you absolutely have to access it, but since it happens on a weekend, I never noticed it. And while SF sucks, not having it would suck even more.