I know that when I attended services at a BIG Episcopal church in St. Louis on the first Sunday of Advent many years ago, it sure FELT very Catholic. Very complex, impressive ceremony....and since I had spent the previous Sunday at a tiny Free Will Baptist church in Mississippi, it was quite a culture shock.
I have only been to Catholic Mass about 3 times, but to many Methodist & Unitarian services, so 'middle way' seems pretty apt. for the Episcopalians