Congratulations on launch. We , Urbancompany.com, have launched similar services (and more services like plumbers, technicians as well) in India around 6 years back and few countries in Asia. Customer response has been really positive.
I can guess that following pattern will emerge
"Develop like microservice but deploy like a monolith"
So a container will have group of services rather than hosting single service. Similar will be happen for databases where different databases will on same host.