I like that it allows me easily communicate my tasks or deliverables as well have them assigned automatically once i've submitted (which can be done by email). The fact you need an account of some sort which would normally require credit card details makes this process more difficult than needed but they do offer monthly subscriptions if required so not sure what's wrong here - maybe just make signing up easier? This has been very useful when creating presentations using Powerpoint Online rather then having multiple people editing documents at different times etc.,.