WPMUDEV vast array of tools helps with many important Word Press considerations. Tools to improve speed, strong protection and even assistance with Malware attacks makes this the BEST tool for Wordpress developers online.
Add to that, their STELLAR CUSTOMER SERVICE. Using my membership I can get a chat conversation 24/7 to ask any kind of question related to my website development. They help explain how to use their many terrific plugins and even hop right into my page (When I give them permission) to check things out and give me stellar advice - not only on their plugins but on any question I might have.
They will even do some research for you to help answer any questions you might have.