I bought a 6-in-1 when I was at a conference in Spain and found I'd forgotten the CF adapter to the laptop's PCMCIA slot. It was about 1/2 the speed of plugging the Microdrice straight into the PC but it has proved completely reliable and totally invaluable to read images from my wife's two digicams and the 300D at work.
I think it's well worth the €30 I paid for it - yes, over priced I know.