I've done a few video reviews of EC with a few more coming. So far I've posted a CRJ700 in row 4:
http://www.modhop.com/video-delta-ai...comfort-row-4/
...and a comparison review matching-up rows 31-32 of a 777:
http://www.modhop.com/video-delta-77...-seats-31-32j/
I'll likely have more in the very near future (I'm actually surprised to find that those are the only two I've done!) as I'm in DL seats this weekend.