We absolutely recommend WPMU DEV. Their customer service is second to none. Juan Cuello and Mercedes Caldwell went out of their way to solve our problem. We were having a difficult time getting a payment go through for a promotion that they were running after going through the entire weekend we still could not get our payment to go thru. We contacted WPMU and Mercedes Caldwell checked in on the issue and emailed within a couple of hours and asked me to try and authenticate the payment once more. Once that had failed I connected with Juan Cuello and he checked on a few things. After all of the issues that took place and all of the billing problems WPMU decided to comp our payment and set us up for the year under the unlimited program that we were looking for. Needless to say, we are customers for life and WPMU has some of the best customer service in the land.