I converted to exclusively ESU LokSound decoders after installing about 35 TCS, NCE, DigiTraxx, and a couple other non-sound decoders. I use ESU V5 sound decoders exclusively now. I run the layout with an NCE PowerCab, and an SB5 booster. I bought a LokProgrammer also. I use it to install the initial sound file and CV settings, then the NCE takes over for any adjustments to the CV set. I have 48 diesels with ESU decoders so far. I have a new Kato 4-8-4 that needs an ESU decoder- installing soon. Some installs into the old Atlas, and Atlas/Kato and Arnold can be challenging, but a bit of machining, Dremel work and a good set of small files helps a lot. I have read about ZIMO, but no further interest. TCS- I might have gone with them but once I started with ESU I stuck with one company.