No! No! No!
My wife and I were on the Norwegian Sky last year after they adopted Freestyle Dining, and felt it was a real downgrade in the quality of a cruise vacation. The service in the formal dining room really showed the lack of incentive that I believe tipping a waiter for their service for an entire week gives.
That, and the tiny rooms (we had a balcony) made us decide that NCL had a long way to go before we would take them again.