Since you have the choice to use a canon flash which has a wide range of compatibility with diffuser options and such, why not?
Unless you're a Pentax user (like me) or oly, etc etc dslr, which doesn't take in canon or nikon, i don't see why you shouldn't go for the more popular flashes. :sweat: For me, every time i see some sort of flash accessory the first thing that comes to mind is "will this be compatible with my flash?". Normally such items are available for pairing with the Canon/Nikon flashes. If they're not, normally they would state so as well, saving you from buying an incompatible item.