Net Results is my company's 3rd MA platform and it is by far the best. They focus on ease-of-use and great support, which is a necessity given how complex MA can be. We have a small Marketing department and previous MA platforms created more work than they actually saved, so we were worried at first.
But the software makes it easy to do lead scoring, nurture campaigns, automatic email responses, instant alerts when someone visits the site, weekly reports showing lead activity, and integrating with SalesForce. My goal was to create as little extra work for my Sales team, too, and that was the case. All the do is keep Salesforce updated and I can do the rest.