no. unless you used flavored Jello-O.
the unflavored gelatin is neutral. most people buy a big box of Knox gelatin from the grocery store and use a half packet at a time. it is much cheaper than buying from the HB store.
you won't taste any gelatin, but if done correctly the beer will be much brighter.
some might claim that clarified beer loses some character, but I am not one of those people. if you are used to yeasty beer, then sure, you would lose that element. but this is mostly a good thing.
Cheers.