Sean O'Neill

Stay Alfred's $15 million Series A funding may pale next to the roughly $3 billion that Airbnb has raised. But the company — which services apartment rentals and aims for hotel-quality service — is part of a thriving wave of vendors providing an ecosystem of services around short-term urban rentals.

This is a decent exit for the investors in ReviewPro and a wake-up call to a Western hotel industry ignoring China's tech scene. But it is also a validation of ReviewPro's particular approach of giving hotels actionable analytics on guests for sales and marketing, and revenue management -- and not just monitoring TripAdvisor ratings.