A few years ago one of my colleagues got me in touch with one of the founders of a new and upcoming WordPress hosting companies: WP Engine. The service was still pretty new and after an impressive conversation with them – I found myself recommending clients to using them as a host.
Recently, while at WordCamp Chicago, I signed up for an account and decided to give them a try myself. Today – I migrated all the content, data, and finally the DNS. Everything went smoothly (minus a DNS prorogation issue which is no fault of WP Engine). WP Engine’s documentation is great, they have a staging environment, their tools are easy to use, and they allow you to take snapshots of your site so you have a backup whenever you need it.
If you are looking for a solid WordPress host – you should definitely check them out!