we chose this cruise as it was visiting naples and we wished to see herculaneum.
our first impressions were that the room was slightly bigger than an equivalent one on discovery one (which we sailed on last year). the ship appears fine with the usual layout, dining was excellent as you'd expect on any cruise ship, in this case generally catering for british tastes (although there are more adventurous restaurants on board at a surcharge).
service was excellent, at dinner, at the 'squid & anchor' bar, and during the daytime whilst sunbathing too.
now onto the entertainment, some of the daytime pool entertainment was good, with decent music playing, and fun games and competitions.
the evening entertainment in the squid & anchor was good to very good.
onto the broadway show lounge, the shows in general were good (obviously some better than others) but sadly as yet not up to discovery one standards. there is NO BAR in the show lounge, and thus no waiter service, the staff hand out glasses of prosecco and bottles of san miguel fresca (which for me is watery and nowhere near the standard san miguel, don't take my word for it look on the 'ratebeer' site) anyway i'm not a youth or in my 20's i want to drink, what i want to drink, and on an evening it's quality not volume, they somehow need to get a bar in there and send someone from management onto discovery one to see how it done.
now onto the ship's REAL ACHILLES HEEL, THE TOILETS, for 4 days out of 7 the toilet in our room didn't work, didn't flush, that of course means you have to go out and find one that does. if you're in the shower you have to get dressed, if you're in bed, yes you have to get dressed. the 'quickest' for me was two decks below on the first occasion, yet the following day those were locked (as they were out of commission too) and i had to go down yet a further deck. as the week wore on you could from time to time hear the usual conversation amongst other passengers about 'their' room toilet being blocked, the public ones being locked, and even one lady who said it looked as though a public one outside the squid & anchor 'was about to overflow'.
from my experience on the merella explorer i'll not be going on a 'new' ship until all the gremlins are ironed out, broadway show room wise it's certainly NOT to discovery one standard, toilet wise it's short of a 1970's corfu hotel.