I've never played through either but have noticed: Switchbone: Has lot's of cool features, uses opto couplers instead of relays, has pcb mounted components. Lehle: Uses gold plated contacts on relays, lacking features, seems indestructible. Any input??? Edit: Gosh! I just did a search and read all the threads. This is a tuff decision. It seems it depends mostly on what I want. The Lehle is simple and effective w/ one less click. The SwitchBone has lot's of cool features w/ one more click and doesn't appear to be made as well.