I voted maybe/maybe not...
Our first cruise was 3 days, I was not sure I would like it, but always wanted to try it.. The G/F's sister booked it all.
Anyway we loved it, but really did not know what we loved about it, so we booked a 5 day within a month of returning from our 3 day and sailed 7 months later. That was good, but not long enough, I think Min should be 7 days... but to determine if you like it 3 days might be enough it might not... Like I said it was enough that we knew we wanted to try again and see why we loved it, so we did the 5..
We still are not 100% sure why we love it, and I do not think we ever will know why we love it, but we are just going to keep on booking 
I tell people cruising is like having kids - you just do not know what it is like until you do it... Pardon the pun LOL |