I have a 40' long 0 gauge layout - Dubmill Sidings. I use the Gaugemaster Prodigy wireless system with a 5A power booster. Normally have 3 handsets in operation at any one time but have been known to use 4. The wireless operation is brilliant and provides just the flexibility we need when operating. Had one or two problems with handsets but Gaugemaster have sorted these quickly. Biggest problem was at the NEC a couple of years ago which we ultimately put down to interference from other NEC equipment. Decoders vary from TCS1, Gaugemaster DC0025, Lenz Gold and NCE DR408. Consisting is easy as is programming on the main. Very happy with it.