Before we moved I had very good reliability with DCS on my former 54’ X 32’ layout with six loops on three levels. My 17 year old DCS system and remote still works as good as new. Initially I had some of the error messages, but then I just simplified the wiring to bus wires and I haven’t had a problem since. Only time I get error messages is if the remote batteries are low.
I like being able to get software updates via my computer. I remember having to send my whole Legacy system back to Lionel with specific mailing instructions for the first Legacy update.
I love my MTH locomotives, but I always wondered and hoped that someday Atlas O and their high quality locomotives would have DCS installed. Seems like that day is coming to fruition!