On a performance level, they are pretty much the same.
Our Tourbillons will not have the same level of hand finishing as a $400K one, and you can't earn as much hipster points by saying every single part of it was hand-lathed through some arduous process that was required in 1790 but not 2018. But in the end, you cannot argue with the results it produces.
On a performance level, no one can say anything detrimental about it.
Legendary watchmaker Philippe Dufour even predicted this 3+ years ago, and we are the ones making this happen: