Hope you don't mind if I bump your thread with a few questions.
Have you set up a company to do this, or are you doing it as individuals?
Are you offering formal agreements in terms of network and power uptime? What about insurance in case of damage to hardware?
Do you offer inward network access to miners so that clients can verify or change configuration?
Give me a bit to verify these answers but tentatively my response would be:
1) There is a corporate structure behind this (numbered Canada corporation).
2) There are no formal agreements setup yet, but we do intend to compensate customers for major downtime. If the miners are down more than
48 12 hours, you will receive a refund fee for the entire down time.
3) No insurance yet unfortunately but we are looking into the financial feasibility of this.
4) Not as of yet. This is something that is on the "to do" list. There are obvious security concerns with doing this and this has to be carefully planned and implemented.