I received my new controller and display last night (12/8). Installation was easy about a half hour. You will need to unwrap the sheathing below the crank so that you can get enough room to disconnect the cable from the display to the controller. I'm in my mid seventies and really like the new characteristics. PAS 1: works at 4 amps nice and slow when making a U turn, top speed 9 mph. PAS 2: 8 amps top speed 15 mph. PAS 3: 12 amps top speed 19 mph and peppy. PAS 4: 16 amps top speed pedaling 24 mph. PAS 5: 20 amps top speed pedaling 28 mph all of the zip it had before. The lower PAS settings are smooth and upper PAS levels are powerful.