MTH DCS remote commander is a DCS light version. Small, handy remote like a pocket-size remote. I am a Legacy and TMCC operator who prefers to use Lionel's system but my honest opinion is the remote commander is by far priced well and easy to use in any MTH starter set to attract young folks into the hobby.
Yes, it only operates 1 proto 2 engine set at or reset to factory default but it works very well. It serves my purpose for some of the unique proto 2 engines that I have which no other manufacturer will ever produce.
I know my friend ,Barry, will chime in here that I am missing a lot of built in features not using DCS but it the commander does what I want.
Highly recommend buying the remote commander if you are on the fence going to the full DCS system. It is not expensive at all.