My initial thoughts as a solo customer, not necessarily in any order:
1) They've been reading this board
2) Create an area where fellow solos can meet and mingle in their own setting
3) The complaints from unhappy solos on NCL have been more about service and fellow passengers than cabins (I consider cabin single supplement complaints a given)
4) These cabins may make many solos initially jump aboard Epic, but I wonder if the rest of the NCL/Freestyle experience will entice a solo to go again.
74 days spent on board: Celebrity Solstice 5/15 Alaska; Carnival Triumph 2/14 W Carib; Crown Princess 2/13 W Carib; Voyager of the Seas 3/10 W Carib; Celebrity Solstice 12/08 E Carib photo album; Radiance of the Seas 1/04 W Carib; Summit 10/02 S Carib my review; Millennium 1/01 E Carib my review (#2); Viking Serenade 11/98 Baja; Viking Serenade 1994 Baja; Crown Princess 1992 Pac Coast Repo; Viking Serenade 1990 Baja; Azure Seas 1988 Baja (RIP)