i did the 5 day one (mon-fri)....only difference is they make a stop at catalina....i had never been there before this. man, what a boring place.
ensenada was cool....i went to the blow hole too...and i have to agree, not worth it. the shops down there are cool, but its the same crap you can find on the streets of ensenada.
i enjoyed staying on the boat the most. met some cool people too. also, dont pass up on the dinner. the food is actually pretty good and whats cool is you have an assigned table with the same people every night. you get to share your stories and get ideas of what to do. i was at a table with some really cool people and after dinner, all of us would go out drinkin/clubbin together. good times for sure. i'd do it again in a heartbeat especially with ticket costs down as low as they are now. you couldnt spend 4 nights at a motel 6 and pay for food for those 5 days for that price.