We have done concierge’s class on Celebrity three times. Once on Equinox, once on Summit and once on Reflection. It does cost a little more, However we do like the extra perks and extra captains club points as well. Have been invited to the helipad for sail always from ports in Europe and the Caribbean, special concierge class events, embarkation day lunch, prime cabin locations, tasty canapes and using the concierge host for various reasons, It elevates the experience a bit. It also helped us get to Elite CC in only 4 cruises( combined with all the CC power up points). Some don’t find value in it, but we do.