I've been searching for the good hosting provider that could offer scaleable service for multi-store site, I noticed that there's one called MageStack offer easy setup and easy scale, just wondering if there's someone has any experience with MageStack, it would be great if you could share some of your comments related with MageStack.
I'm also finding good service provider that could offer AWS setup for multi-store site (multiple web server, load balancer, nginx + php-fpm, centos 7, percona db all use different server), it would be great if you can share your experience with some of good service providers.