http://www.dealextreme.com/details.dx/sku.6201
I have made several (about 25 or more?) orders from this company and generally there quality control is quite good (Free shipping is a little slow - but hey - it's free!).
When you look at the higher priced alternatives to this product though - doesn't it make $20 sound like chicken feed? My guess is it's worth buying one just to try it out - and not much lost in the order if it doesn't - if you're considering this product, you're probably not going to be aproffessional (or you'd buy more expesive gear elsewhere) and i would suggest you also don't NEED the E-TTL if it doesn't work...
in fact i'd have ordered one already except i don't have a flash 
but I feel better about it hearing some one who has orderd from them with sucsess.
