I would say its an amazing skill and would recommend a couple levels for anyone who is taking the field.
Our group role play very disciplined and pragmatic. When one of us goes down and we are forced to retreat, we don’t need to panic to save you comrade/s. 2 ranks (Which I have with aid of the free light armour under plate) gives 6 mins of bleed out. You can fall back in good order, quickly heal up, take a swig of water,regroup, dress your line and then advance properly with little risk to the group as a whole. We have had some one with a 15 min bleed out, get separated behind the gate bottle neck and save him with a minuet to spare.
Its an underrated skill that means people don’t have to panic if you go down.