I just installed this today and what a disappointment!  I agree with reviewer Reets9.  The base does not fit flush onto sink, allowing water to get underneath it; the pump does not fit securely, wobbles and spins; it is difficult to push, making one handed use difficult; after dispensing, there is always a drop that leaks out.  Seems like it is cheap quality.  I would definitely not recommend this product.  Looking for a replacement.