I haven't ever heard of the exercise up until I stumbled across this video. What's your thoughts on the exercise ?

If you're looking to build a big back pull ups are the best and deadlifts.

meh

Just so many better options to target the lower back

His second variation of doing the lean back, then rowing it, even is better cause you get the row as well






Wouldn't recommend it unless this specifically helps you due to an injury or body mechanics, otherwise there's a plethora of better posterior chain options for the lower back IMO