Thanks for the responses, folks. I am in need of something to substitute for the very convenient (and cheap) RC-1 that I used with my 7D and 5DII. It was this or the PocketWizard cable to trigger a mounted FlexTT5 from a handheld MiniTT1, and the hähnel gets me an intervalometer for the same price as the cable. Need something that fits inside a hand or pocket, so anything from Canon seems to be out, as the options boil down to a slaved flash or the LC-5, both of which are pretty big.