This was our first cruise on the Seven Seas Navigator and indeed the first with Regent - previously we have sailed on Seabourn and Silversea.
We mainly chose this cruise for the itinerary (Montreal to New York), and its dates which fitted well with our earlier travels through Canada. We also liked the size of the ship, which factored into our choice. And we were keen to try Regent.
It was a very enjoyable cruise..easy, friendly embarkation with prompt suite availability after a leisurely lunch, very good included excursions and fabulous meals and entertainment.
We had been a little concerned about some of the reviews mentioning vibration on the Navigator. We honestly did not feel this even though we did have some days of heavy seas.
The only thing we did notice was that during the storms we had on 2 nights, our particular cabin seemed to have a creaking / rubbing noise in its wall/ceiling area above the bed head - no one else we spoke to had the same issue though. Looking at the deck plans it seems that our suite, 811, is on what looks to be a ship section end point so we are thinking that perhaps that is what the issue was - it was fine on normal sea days - only happened during the storms. And such things can happen in storms anywhere really.
The next cabins along did not have it though - so its's worth noting, if you can choose another, perhaps that would be a good idea.
We are cruising again on the Navigator in August and have chosen a different suite location - same category but a little more mid-ship, so will report back again.