I think it's great! I grew up Catholic though my wife and I currently go to a Lutheran MizSyn Church in the area. We go to their traditional service in the morning, because I like the structure, the Eucharist sacrament, the traditional hymns, etc. and the pastor is great...
I think between the Lutherans, Episcopalians, Methodists, and Catholics there were about 11-12 fundamentals of faith they were putting into "dogma" of interfaith worhsip. I even think they were reconciling so that as a Catholic I could take communion, be married, etc. in a Lutheran Church and the Holy See would recognize it (not really worried about that last part, it is inconsequential to me, but it would be nice as well if it happened, because it would signal that the Church is mending some of its illogical laws).