I didn't realize it was only the Villains. That's disappointing. We did the regular After Hours 2 summers ago, and we really liked it. One of the things we liked most (besides zero wait times for attractions) was how quiet and relaxed it was. We took some great pictures on the hub, relaxed for a few minutes just sitting in the hub with it quiet, no one walked down Main Street at one point for at least 5-10 minutes, even got free espresso from Starbucks because they were so dead. It was just such a different feeling.
By contrast, we were there in February on a night that they had the Villains After Hours. We were there until close, and actually past closing time by a good half-hour because we got on Haunted Mansion about a minute before close, then the ride got stuck for 20 minutes. So we got to see, despite being funneled away from the hub, what Villains was like, and we thought it would have been awful. I realize some people would really like it, not to slight them in any way - it's just not for us at all. It was super loud, the music was blasting all the way out of the park - it was like a techno-dance party on the hub. That super chill, relaxed, empty feeling was completely gone - exact opposite (I'm sure it was still no crowds - talking about the feeling).