As I understand it, these seem to be a good standard inexpensive transformer for a basic train set. I will be running one large oval (4x8') and one inner oval (I have cheap kit transformer for inner track, if I even go that direction). I understand a bit of what DCC is capable of, but I just don't think I'm there yet... Track is currently brass with some steel track, I hope to eventually get nickel-silver. Anyway, my son is 2 and has a MAJOR interest in trains. Talks about them before going to bed at night and wakes in the morning. He has his wooden set to play around with. I was thinking of trying to rig up a train or building with sound, but than I came across this transformer. Does anyone have an opinion? Are these reliable? Should I avoid picking up a used one, should I come across one? Thank you for any information!