I have been using this service for several weeks now with no issues or complaints thus far! Very fast response times from customer support as well! We are looking at multiple use cases (iBanks & iFinance) where we want users/clients to be able automate some processes within our applications without needing direct access into any backend server(s).
This allows us not only greater security but also reduces risk because it's all done via code rather than through manually inputting data directly onto an API page etcetera.