Well my S557 arrived last Friday,had its first work outing on Saturday,and I've got to say I'm very taken with it.
Xelkos has already done a great write-up,and there's nothing much I can add,except to say that it might have been better if the Philips/wrench layer was swapped around with the scissors,and I do wish it didn't have the lock on the blade!...oh and more options on the scales
The S557 is a funny little thing though.In terms of tool load its maybe closest to Vics DeluxTinker,but in feel it seems to be Wengers SwissChamp!
I know Wenger has bigger tools,such as the S54,but the S557 really seems to be the flagship,or should that be the swan song of Wenger.
I'm hooked,just a pity that its extinct!