As someone stated above, there is no cohesive Eastern Catholicism. It differs from place to place. For example, I wouldn't say that to the Ukrainian Greek Catholics from Brampton, Ontario. http://www.saintelias.com/ca/home/Hermogenes said:The only time I ever attended an Eastern-Rite liturgy I could tell immediately I wasn't in an Orthodox church, long before we ever got to the Flioque or the Hail Mary. Perhaps it's the feeling of a connection being broken.
I know Byzantine-Rite Catholics tend to think they are Orthodox, but it just felt different. Anyone else have that experience?