To me, as a customer, startup has a negative connotation. I am always reluctant to depend on any nontrivial service provided by someone calling itself startup, because I know they are not here to stay and continue to provide the same or improved service in the future. Instead, their goal is to exit by selling itself to whoever wants to acquire them, and that usually means the end of their service.

If I have to depend on the service, let it better be provided by a business that is struggling to make money on it for as long as possible.