I've often been tempted to get one of these passes. When in the car it often feels as if all the good time I've made, sitting at 130(ish) is lost sitting in very long tailbacks at the peage, and this is made more frustrating when there are cars pouring through the telepeage lane without stopping. So, for the car, I'm still tempted.
When on the bike it's more complicated. If I use the telepeage card I'm going to be charged car rate and if I use a manned booth there's no benefit to handing over a telepeage card when I can do the same with a credit card.
In recent years I've done less travelling with my wife on the back and more with my brother on his bike. He prefers to avoid motorways so I see fewer peages these days, but when we do use them we generally enter together, then the inside man pays for both (one at a time) which means only one person having to battle with wet gloves, credit card etc.
In years gone by, there was a "moto libre" lane on all the peages between Paris and Marseilles for a week either side of the Bol d'Or endurance race. The motorcycle traffic during this period was heavy enough that it would have caused serious delays on the autoroutes, so motorcycles went free of charge for this period. It made for a stress free and fast trip to the South of France - Zeebrugge to Circuit Paul Ricard is approximately 700 miles and could be done on a GPZ900R in 13 hours.
Aahhh ..... Those were the days .....