I upgraded to the M17S from my ~5 year old M17 3-4 weeks ago. Conversion was easy, subtrims and EPAs all matched (I.e. I copied models over and didn’t have to re-trim anything), the feel in your hand is the same, so it didn’t take any time to “get used to it”. I’m not a “super user”, but very happy so far, and no issues to report on 2 different 12th scale & 1 sedan.

My only minor beef is that it came with a limited Japanese manual, you’ll need to download the full English version

Denney