Sorry, forgot...
I installed the original first prototype wire plus module in my Ridgeback almost two years ago and about 6000 miles later I have not had a single hickup or any sign of a issue.
The best thing I like is my bike can sit in storage for 3-4 weeks, with the battery connected, with NO battery tender on the bike... and when I go out to start it, it cranks over like a raging bull!!!!
I could not let my bike sit for 7 days off the tender with the EHC and get it started.