Product review (3 stars): Works as advertised, but you should know something
This switch feels like a toy, it's really light and I'm thinking it would break, but it works as advertised.  Kind of hard to mount if you have a small sink.  The cord is only about a foot or so, could use a few more inches to mount easily if your electrical plug is close to other device such as water heater or water filter.  Also the switch does not fit into my sink hole that the soap dispenser was in.  It would be helpful if they include different size switch/button as oppose to differnt style.  Now my switch just sits outside the sink because it doesn't fit.  It's hard to mount anywhere else because my counter is either steel or granite.