I use bluepoint controllers for all of my turnouts except crossovers where I use tortoise because I want one switch to control two turnouts.
Bluepoints are easy to install, require little or no wiring depending on turnout types and other options you may have (signals, indicator lights, etc.) and they work great.
A member of our european FREMO group used it on his module. very nice things, indeed.
here some pics (sorry only italian text):
http://fremoitalia.blogspot.com/2007/03/blue-point-turnout-controller-prima.html
http://fremoitalia.blogspot.com/2007/04/articolo-ed-immagini-di-marco-trespidi.html