I know that in ROCOR, there are several WR Liturgies that are approved for usage in their WR Churches. The Ambrosian, which is used almost exclusively in the Diocese of Milan in Italy, by aprox. 50 RC Churches is a beautiful Liturgy that is very Christ honoring and meaningful, and is used by a ROCOR Mission in Indiana. Also, the Galican Rite is used in at least one ROCOR Church that I am aware of, in Des Moines Iowa. It seems that those who have converted from Anglicanism to Orthodoxy use mainly the Liturgy which they have named after St. Tikon, anthough he never wrote a Liturgy, or actually approved of any WR Liturgy as some eroneously claim that he did. The entire text of the Russian Orthodox response to the Anglicans attempt to have their BCP approved by the ROC, is available for anyone to read online, if you are willing to take the time to look it up and read it. There is no approval anywhere, but many recommended changes, and criticisms. The Rite named after St. Tikon, is basically the BCP, with minor tweaks so it can be called Orthodox. I have no personal problem with it's usage, since it does "get the job done", but it is, however, misrepresented as being of St. Tikon. In my personal experience, it is lacking when compared to the Ambrosian or Galican Rites, and definitely lacking when compared to the ER, used by the Antiochians, for instance. If someone wishes to use the BCP (tweaked for orthodoxy), fine, but stubbornly holding to it, just to cling to ones "Anglican heritage" is not really a good reason do do so. I still have a hard time calling Anglicans Orthodox, although there are some who definitely are. One God, One Church, One Liturgy, maybe someday.