I've worshipped in an Orthodox church - in Ayrshire, of all places, and enjoyed the experience whilst not really feeling coomfortable with liturgical worship. (It's a Presbyterian thing). I've visited a few Orthodox (Coptic) churches in Egypt, and have a couple of good Coptic friends, and there are a fair few differences in both liturgy and doctrine, as well as church structure (and, of course, language and literature) The Ethiopan Orthodox Church is a whole different kettle of fish, and many of their practices and books are unique to that nation, and are actually throwbacks to the Kushite civilisation, an amalgum of Ancient Egyptian and African culture which existed from around the eighth century BC untill the third century AD,