Sailed a Lagoon 44 few years back, nice boat! We had 8 adults (four cabins) and there was plenty of room. Performance wise, cats do not go to weather as well as a mono, it's just the way it is. Expect to motor-sail to windward if you have a schedule to keep. If you are a performance oriented sailor, stick with the monos. If you want to relax and enjoy life on the level, cats are terrific.