Sorry i have been so long in replying to my original post. It does work once you get to grips with the system. The operation of locomotives is very smooth. Read & write is easy. However, Scrolling through the menu to find what you want is a bit fiddly easy to loose your way. I failed once to remove all locos from the track and programmed the lot to one address. Made a DPDT switch to stop this from happing again. I wont go on, just to say I have gone back to my old controller, probably because i have had it so long I can use it with eyes shut. I now use the unit on my independent test track for that it suits me fine, saves having to switch wires from on to other. Best. Mel.