It's the people that do them that put me off as much as anything. Other than that the concept is one that I am not entirely inimical too, especially if it involves visiting a lot of interesting places in a short space of time.
Mum and dad did a Baltic Cruise early last autumn and loved it: Helsinki, Oslo, Stockholm, Riga, St Petersburg and Hamburg in the space of a few days sounds pretty good fun if you're in good company.
On the flip side my dad took us all away on a cruise round the Red Sea about a decade ago - Egypt, Jordan during Christmas. It was ok, but I was a little bored at times tbh as there was little to do a lot of the time. The food was average and we all got a virus (which is quite common on cruises)
To me if it was full of like minded people around my age, involved a few hours visiting an interesting city other day, and good food and a piss up at night, I'd be set I reckon, at least every now and then.
