I'm cursed with dry, frizzy, and coarse hair that takes a lot of work to make it smooth and sleek. The Rusk Sheer Brillance Smoothing and Shining Polisher makes the smoothing process a lot easier and adds a ton of shine to my hair.
It takes very little of this product so you have to be careful not to use too much or you will end up with oily looking hair. I rub in a small amount, especially on the ends, and then allow my hair to dry naturally. I use a flat iron to smooth out the ends a bit more, and the Rusk polisher helps to protect my hair from the heat of the flat iron. The product doesn't weigh my hair down, leaving it bouncy and clean looking while adding the shine that I want. It also tames the frizzies that I tend to get in humid weather.
This product comes at a great price and is a good value compared to many other hair-polishing products. It lasts a long time since so little is needed.
The only down side to the product I find is that it is hard to wash off your hands, but that is a minor thing when it does such a great job.