That was the impression we got even from our TA...that HAL was kinda stuffy, elderly cruisers and no fun. In fact that's why we sailed RCCI and Celebrity, etc. first because of our TA's suggestion that HAL was NOT for us. Was she wrong!
We didn't find any of the negatives our TA was worried about. There is plenty of entertainment and fun.
There's a nice age mix of passengers, and they were a bit more upscale than on RCCI and Celebrity, but not stuffy.
There are fewer children and teens on HAL in comparision to the other big three, and the night life does NOT go on until the wee hours of the morning...all of this is fine with us.