I've been wondering this myself. Good to know they should hold up.

Another point with the tripleizer: why is everything going the way of two speed up front and more in back? From what I understand, I have way more gears in back by adding just one more up front, so why does everyone want a compact double nowadays?

I sell bike parts as a hobby so I have a bunch of cranks in storage. Most of them are 130 BCD 53/39. Most important to me is a proper crank arm length. I just so happen to not have a triple with this correct length. So, in order to save some cash and hassle, I ordered one of these tripleizers. It seems to be an amazingly easy and practical solution. So now I can turn any of my 130 bcd cranks into a triple, giving me more gear ratios, whilst allowing me to run a smaller cassette in back.

Just makes sense to me.