I just came on here to ask the same question.
Quite unexpectedly, it has made me feel rather upset. It's brought back all the memories I had of learning to ride outside, all the same feelings of shame and stupidity at not being able to do simple things (I'm a fatty so everything is 10x harder).
I was assuming it would be a lighthearted and amusing bit of TV fluff, but I actually had tears in my eyes after ep1. I wasn't as bad with ep2, but still recognised the emotions of several of the celebs (Lucy, Louie, Angelica mainly) and it's all come back.
For me, the idea of mass events is horrifying. I booked onto loads when I started cycling and hated every single second (despite doing them with an OH who did everything he could to help). And these were easy, short distance charity fun things. I would love to have the confidence to even remotely believe I could ever achieve a 50miler, let alone L'Etape, but I never will - so seeing people like Angelica do that sportive, starting from absolutely nothing, just made me feel even shitter than I ever have about my (in)ability.
(Hmmm. I don't think that is what you were expecting as a reply, sorry about that. The programme has been playing on my mind since viewing so it all came tumbling out!)