I agree the newer Life Like units are very nice, but I also run DCC, so until I get ambitous enough to put decoders in them, they must run on address 00, and the make a bit of noise. I have 10 GP20's, but only have 2 painted so far, but I may run 2 of them together and use them as yard switchers on 00. They do pull allot for a 4 axle locomotive.