As D+ I have to say we are somewhat disappointed. D+, more likely than not apparently end up not allowed in concierge lounge. Last cruise we were in an overcrowded Diamond Lounge. Just rec'd notice that next cruise, the concierge lounge is only for suite guests and pinnacle. When I contacted them with a suggestion of discounts on alcohol packages, to maybe relieve overcrowding, I was reminded that D and D+ get 30% off - onboard. The price online for anyone, is almost always 30% off or more at some point before cruise. The only other noticeable benefit I see is another day of internet, so that's up to you whether it's worth it. I go on a cruise with a main goal of getting AWAY from it!