There is a fully enclosed head with an integral shower aft on the starboard side. Storage space under berth and seat cushions is adequate. If this sounds like a lot to pack into a 28' boat, it is. The downside of this interior is that this is not a boat designed with big people in mind. The longest berth is only slightly over 6', and although the port side quarter berth is wide enough for two people, half the berth is tucked under the cockpit.
Overhead clearance is insufficient for all but young children.
Cabin doors provide privacy for the quarter berth cabin and head but are very narrow and sometimes difficult for a grown adult to get in and out of. Ventilation is about as good as it can get on a boat of this size. In addition there are five opening ports. One of the benefits of my job is that, over the years, I have been able to sail on literally hundreds of different boats. Of all these, there are only a few dozen models I have had a chance to sail for any period of time or under a variety of conditions, so when commenting on sailing qualities, I often rely on accounts of others.