What a nice surprise this was, running into an Ad Orientem Novus Ordo Mass in Warsaw Old Town:
Despite being said in Polish, the priest, servers, and congregation all faced East together during the Mass, in the same way as the Old Latin (Tridentine) Mass.
A couple of years ago, I caught an Ad Orientem Novus Ordo Mass with the Oratorians in Oxford.
The Ad Orientem Novus Ordo Mass that I caught in Warsaw Old Town was on a weekday evening at the Church of the Holy Ghost:
Of course, the Ad Orientem position is viewed as especially important during the consecration, when the Holy Sacrifice (of Christ's Body and Blood) is offered to God the Father in reparation for human sin.