I usually don't make the time to write reviews... but I had to here.
Probably one of the best and most useful plugins I could ask for! I have a bunch of pages with several youtube video's on each. My load times averaged about 8-9 seconds. After installing this plugin, I checked the load time again and it knocked it down to around 4 seconds, sometimes less!
I also tried a couple other lazy load plugins for videos, nothing worked except this one.. and this one works perfectly! Nice and clean, easy setup with the shortcodes.