We've been trying to find a solution for our website we're building and WPMU DEV seemed to have the tools we were looking for, but I couldn't be sure until I tried them. Unfortunately, they didn't have free versions of their plugins, so we had to purchase a subscription in order to get access to the plugin. I get it, but it's much easier to test before having to cough up the cash.
Unfortunately, what they had didn't fit our needs and my research got cut short. We had to go with another option. HOWEVER, the guys at WPMU DEV were very accommodating in cancelling our subscription with no questions asked.