I gave it a try on the recommendation of a friend. Overall, I like it. I only get the twin blades, in a five pack. I think it's $2 a month. Cancel anytime, very easy to skip a month if you want also.
Only downside (at least with the twin blades); The blades don't last very long. They work better than a disposable, but you only get a couple uses out of them before they get dull. Both disposables and expensive blades tend to last longer, but for the price I like them. I get a couple nice shaves (maybe 3 if Im lucky) then I pop in a new one, it's cheap and I never run out.
Also the handle and the way the blade attaches to the handle are kinda cheap. Still, it has worked fine for me. Same handle now for about 7 months (and the handle can be replaced for just a couple bucks).