My DH and I were on the Voyager last January and loved it. The ship was beautiful; I didn't even know it was "older" until I later looked up the details. The food was so good I gained about ten pounds. We had cruised only once before on Carnival which was very fun, but the Voyager was classier with more sophisticated entertainment and service.
We had such a fabulous experience on the Voyager, we are doing the Navigator this March, which is in the same class.