Running out of my staple and without having much waterproof mascara to select in the drugstore, I picked this as I recall using the Volume Glamour Ultra Black long time ago and that one was nice stuff actually.
This mascara comes with a thick spoolie brush, in fact a bit too big for my liking as it's difficult to get into the corners. It volumizes and lengthens my lashes a bit, but I can't see much thickening... So there is nothing dramatic here. it may work for you if you're looking for natural looking lashes. The good news is no clumping issue at all.
Contrary to the other reviewer, this actually flakes a little bit on me. Luckily it doesn't smudge on me.
The major issue I have is that this kills the curl almost instantly! I always curl my lashes before applying the mascara and I noticed that the curl is flattened once this mascara is on. It does happen when I'm using non-waterproof formula but it happens very rarely if I'm using waterproof formula! Not impressed and not going to repurchase.
[UPDATE Oct 06]
This mascara dries out so quickly - it dries out significantly in 3 weeks' daily usage, which doesn't happen with my Maybelline and Lancome. Being so dry, it clumps quite badly and if I try to comb my lashes, I'd end up with flake disaster.
I bought this as I really liked the Bourjois Volume Glamour mascara and thought this was essentially the waterproof version of that, but it's not. I didn't really register the 'max' in the product title, but I'm assuming that it refers to the big, rounded brush which is slightly unwieldy and reminds me a little of Prestige's My Biggest Lashes. This was mascara was adequately black and waterproof. It didn't flake and smudge. It is a volumising mascara and does a decent job although nothing standout. I found - as with most waterproof formulations - that the mascara dried out quite quickly. I found this gave an enhanced natural look if that's what you're after. I wasn't sufficiently impressed by this to buy it again. For a natural-ish look, I'd rather use the regular Volume Glamour.