This is so so similar to my favourite mascara; maxfactor false lash effect in waterproof black. At least it was my favourite .. I have fallen lashes over heels for the Covergirl Lash Blast in waterproof brown - yes, waterproof brown! :D I have always preferred to use a rich brown mascara as opposed to black because my nan once told me how less harsh it would be against my blue eyes and she was completely right. I do still like to use black from time to time, especially with a dark smokey eye but brown is usually better :)
The brush and formula mimic each other, in fact the only difference as far as I can tell are the waterproof shade availability that I mentioned and the price - $6.59 vs. £11 a time .. I know which I would prefer to buy if I had the choice .. but I don't :( Come to the uk please Covergirl!