I have 20 of them on my HOn3 layout, all work great and no problems to date. I did have to use some of the Tortoise mounting brackets where I could not mount the switch machine directly under the turnout, they do come with the mounting bracket for the machine and a special bracket that mounts under the turnout for operation of the turnout. I did use model airplane servo tubes to run the cables in to a remote location, works great, just takes a little adjusting to get the cable centered to the turnout and the switch machine. Personally I don't care for the snap type of switch machine, too hard on the turnouts, especially the more delicate ones used in my HOn3 layout.
trainman