* I like to see that services I use have a viable business model (e.g. standard SaaS tiered pricing signup is a good signal to me).
* I don't want to be using a service that is flakey (usual problem is they become uneconomic to run, although your current problem counts too!).
* I want somebody with an economic incentive to help me if I do have a problem.
* Trust is important if I am installing something - I want your business to have strong visible incentives to be trustworthy.
Perhaps find a friend (go halves or something) that can set up exactly the same thing using a payment model and a different domain that looks more business friendly?
If paying, I would definitely like a more anonymous looking domain for use when diagnosing problems with our corporate clients.
Above said, I will definitely by trying it (suitably sandboxed!).