While some of the benefits described here can also be found in many enterprise grade
SaaS solutions such as salesForce it must be said that at a cost of 20-250$ per person per month this can quickly be a more costly solution than a bespoke one - especially if you are not using the solution to its full capacity. It all comes down to your requirements and what you really need. Its fantastic to have a great product that is trusted and used by so many - but what's the point of buying the largest Pizza in the world if you can't eat half of it.