I really enjoy this conditioner, though it is definitely harder to use than regular conditioner. I find that I really have to work it in my hands to get enough to condition my hair, but if I put it directly on my hair it's too greasy. The petite conditioner has lasted A LOT longer than the shampoo, though I have moved on to the larger sizes. I've also been able to get great volume with this conditioner, and my hair lasts a lot longer between washes.
Please see my review for the Fortify Lapis Shampoo because it all holds true for the Fortify Resina Conditioner. Not only is this the highest-quality conditioner I have ever had the pleasure of using, it is the longest-lasting: I have been using the same conditioner stone for a year-and-a-half, when I would normally run through a bottle of conditioner every 6-months. Best bargain ever!