“I was curious to ask you what the benefits of long term chastity is for us males. And how long it usually takes to feel/see the effects?”
Personally I don’t advocate “long term chastity”, but “orgasm control”. The difference between the two being that regular tease and denial sessions and occasional releases are the key to keeping the sexual interest up, therefore the sexual frustration and desire. Long term chastity with no tease and denial and with absolutely no release will lower the sexual desire and in time can cause temporary impotence. These effects may happen as soon as a couple of weeks, but this depends very much of the individual (his libido, his age, his sexual and non-sexual habits etc). One will start having less and less erections and overall a diminished desire for sex. But of course, this happens with or without a chastity device, as long as the sexuality is not stimulated at all.
But the whole idea behind Femdom orgasm control is for the Woman to take control over the sexuality of Her partner, to use his sexual desire to make him more obedient. The true benefits of orgasm control is when a partner that you are sexually attracted to will keep the key from your chastity and will decide for you how long you will stay locked, when you should be teased, when you are allowed to cum and how. Of course, one can wear a chastity, but the whole idea is to give that control to someone else.