I'm using beano, one tablet at a time, about one every two weeks and sampling. So far, my SG has dropped to 1.019 and the flavor is good (though the fermentation temp was too high and it tastes ale-like). I'm going to bottle just as soon as I have the spare bottles. I already bottled 2 batches this weekend (a Special Orange Bitter and Orfy's Hob Goblin Clone). I am happy with Beano. The reason other people aren't happy with it is they add a certain number of tablets and expect it to happen over night. They wouldn't take this approach if they were oak aging, they wouldn't take this approach if they were adding fruit to a secondary, they've read all the problems with Beano, and yet they still refuse to take the patient and careful approach and sample along the way. They want to throw some tablets in there and be done with it. So who's fault is that?
Unfortunately, guessing the number of tablets is a bit of a crapshoot. So if you really want to salvage your beer, you will be adding a tablet (maybe two to start out with)... then waiting two, maybe three more weeks until all fermentation has stopped and take a gravity reading at which point you will maybe add another one... and wait two or maybe three more weeks... then take another gravity reading and maybe add another tablet... and then wait another two or three weeks....
Patience ain't easy. My beer has been on the beano diet since January. However, the results are very good... Still though, I could've had a nicely aged barleywine by now!!!!