I used MTH Scaletrax on my layout since 2003 and the switches have always operated fine. The only issue I had was the plastic toggle switch they give you with the switches. Don't use those as I have had a couple of those stick leaving the switch motor energized. This was early on in building layout. Threw out those and bought mini metal toggles switches for my fascia on the layout. Track is one of the best looking and more scale than any other 3R track . Only thing better is 2 rail.
Here are a couple shots from my layout.