Nothing to say about the technical as I don't know that stuff. But, as an offering you'd probably want a free trial or an easy way for someone to say yes to using your service.
Right now, with no info about your reliability or what kind of business practices you abide by you are asking me to make a BIG decision $150/mo. & my personal info & my business info.
Unh, unh.
Free for a week or 14 days or a 30 full days. That gives me a chance to gauge you and your business and your service and my need. If everything went well after the test, I would more easily ante up.
You haven't EARNED my trust.
You haven't trusted ME enough to give me a few days of the service, why should I trust you with my $ and info?