My son and I did this excursion last summer (early July) - an 8:00 am excursion.
It was Awesome. Our tour was not full, as others have mentioned.. which left room for us to spread out and be comfy inside or out on deck.
The crew and staff we wonderful. I shouldn't rave too much about it as the whales were the stars... and the tour company has no control over them. We saw an Orca pod hunting.. so very active. And then we saw up close a number of humpback whales bubble feeding. Along with some sea lions.
The naturalist said he'd never had a tour like this before.... here's a little video from that excursion. You can hear the naturalist and I chatting on and off.