Wow, is it me or has that come down in price a lot!!!
A friend of mine has one and his exact words were "it was alright until it fell apart". He still uses it but purely as the Side in M/S setups and it's held together with gaffa tape (i think the bottom of the bottle bit came lose/off but i'm not 100%, i'll ask him later).
Is it purely G.A.S or is there something in particular you're looking for?