The lecture is a bit... well... The video explaining @Controller is 15 minutes long, but the actual explanation doesn't start until the 6-minute mark. For the first 6 minutes, it's just clicking through directories back and forth. I believe a technical lecture should be systematic—covering definitions, necessity, how it works, and coding techniques—but this doesn't seem to be the case. Many people seem to like it, but it's not for me. I feel bad for pointing out only the negatives, but I have to be honest about my disappointment.