Really neat tech and all, but $3,500+ for the group? Even just the derailleur and shifter will be expensive. I'm sure the proprietary chain can't be cheap. Oh, you'll now need a special adapter to use your compatible road bike on a wheel off trainer. Semi-disposable power meter is the best. Guess if you're ready to spend this much, you don't mind buying a power meter every time you replace your chain rings (granted, that's almost never on a road bike). The main problem for all of this is that the really cheap by the S brand that gets mocked on this thread actually works really well.
The one thing I truly like is the wireless dropper. $100-$150 over my Fox model + lever all-in cost would convince me.