Just got back from the Eastern Caribbean, and I'm a huge fan of the Norwegian Epic Studio rooms. Other than a wierd lighting system, I have no complaints at all. A creative use of a small space, quite comfortable for one person, and the studio lounge (The Living Room) is a great place to meet and mingle. Some people who were expecting a traditional "Single's Cruise" - ie. were looking to hook up - were disappointed, but for people like me who travel alone because we like our own space but still like to meet people, this is perfect. The lounge has the only free cappucino machine on the ship, continental breakfast in the morning and snacks the rest of the day. There's an evening gathering each day to meet up with other "solos" and arrange dinners or activities together. I enjoyed just sitting in the lounge from time to time and chatting with whomever came along.
The ship itself is big, but quite navigable, and the entertainment is top-notch. You'll likely spend about $40 dollars total on shows and music that would amount to about $500 at home. Don't miss Blue Man Group, Howl at the Moon, Fat Cats jazz club, and the Cirqu show. Second City is lots of fun, the late night comedy musician is very funny, and the Legends concert was pretty good too.
Food is good, and in some cases very good. I'd like to see some lighter options available in the specialty dining venues, and for late night snacks. The set menus are way too heavy, and there's a lot of waste.
The centre section of the ship is a bit smoky from the casino,making it impossible for me to enjoy some of the open spaces and solo musicians (such as Shakers martini bar and its piano and guitar players). There are also few quiet spaces on the ship: music and chatter can get overwhelming after 5 or 6 days onboard. The cabins themselves were pretty quiet.
The water slides are a blast; the pools, though, are for soaking, not swimming. There's plenty of space in the hot tubs, which is nice. The rock climbing is fun too. Don't know anyone who went bowling.
Shops and services are about what you'd expect - ditto the shore excursions. I'd recommend the Kayak-hike-snorkel at Cas Cay if you go to St Thomas, and the Golden Eagle Sailaway in Phillipsberg. Snorkeling is great in the first, so-so in the second, but the Golden Eagle has great staff, it's a beautiful sail, and the beach they go to is great for sunning and swimming. Rum Punch, Champagne and music make the sail back a good time.
I booked this cruise mainly because of the Solo Cabins, and was pleasantly surprised by the experience. I hope some other cruise lines catch on and provide more services for solo travellers. Either that, or the Epic should sail to more places!