Today's Mass was somewhat experimental- the ritual itself proceeded in a fairly recognizable manner, but much of the language was adapted from another Rite.
Ultimately, the Mass was lovely, and I'm glad we have another option for people to say when it comes time to perform the ritual.
There are several important aspects of the Mass, of course, and as long as the central components exist in some form, things should be good.
Another important aspect of Mass is for it to be streamlined and to flow smoothly. Divine Energy and the Presence of God shouldn't be interrupted, and so the ritual has to have a certain flow to it; experiencing these kinds of streamlined, esoteric Masses is enjoyable.
My own tendency will probably have a slightly more traditional flavor to it, so experiencing the more "experimental" and mystical varieties gives me a point of contrast that nonetheless helps to sustain me.
Go in peace to serve the Lord, my friends.