having recently ordered 3 boxes worth ive gotta say ive been suitably impressed with them, they offer some advantages over the traditional glass, namely they cant explode-ever-v useful as made a rather carbonated wheat beer that wouldnt have done if was using glass, also cappers can wear out (apparently- i suspect u need to bottle alot) but sound like a bit of faff to me. Also if u need 2 brews worth of bottles u got them instantly-and they only need a bit of starsan and ur away. cost wise they are an issue- i reasoned however that once capper, caps and heavy duty gloves aquired (for "reclaiming") bottles from the local bottle banks im still about even...also they bounce when you drop them :lol: