There is nothing technically wrong with this item, BUT buyer beware: In order to use this item, you need several things. 

1. The sink drain and drain pipe outline in the wall must line up precisely; there is no bend to this item. 

2. Unlike standard p-traps, that vertical extension piece doesn't connect to the pop-up drain pipe, it replaces it. You will likely have to purchase a separate extension piece to connect everything properly, which costs an additional $30 at least. 

3. These don't always meet local code requirements. 

4. They're fairly new and haven't stood the test of time, so the rate of clogs and problems down the road are unknown. 

Purchase at your own risk (and the risk of paying for return shipping if it doesn't work out).