I had heard nothing but good things about DO however my one droplet/site goes down on a weekly basis, losing it's db connection. I'll google it again but I recall trying to host more than one wordpress site per droplet was not easy to set up and meant the loss of post-title based urls. That said I may continue to use it for one-off non-php/mysql sites (want to try running a ghost site).

Update: found the solution for enabling pretty links when setting up multiple sites. Will do a test run, however it doesn't solve the random weekly database connection issues.