I've gone through HonestBrew, Beer52, Beerhawk and a couple of others I can't even remember now in terms of beer subscriptions. All of them I've used a single month whenever they had a good offer but I couldn't justify paying full price for them given you don't know what's in them. (Generally one or two amazing beers, most average with one vile one I wouldn't touch with a barge pole).
Only thing I do at the moment is beerbods, if only for it's a weekly thing with a twitter stream of everyone drinking the same beer at the same time.