Andres was an excellent tour guide! I had a fair amount of experience snorkeling and kayaking; however, my wife and many others in our group were newbies, and Andres did everything he could to make them feel safe and comfortable.
The snorkeling was great, and you do end up face to face with the turtles; the kayaking was a lot of fun and an excellent workout.
Pro-tip if you end up with Andres as your tour guide. He offers to take pictures of you for $20/person, and he goes out of his way to get the best shots he can; however, I would only recommend paying for the photos if you intend on snorkeling below the surface. He got some awesome pics of me 6-10 feet below the surface, very close to the turtles. Meanwhile, those that didn't feel comfortable below the surface didn't get any cool pictures, in my opinion. He does warn you that he'll only be able to get fantastic pictures of you if you go below the surface.
One other thing, Andres is very open to extending the trip to paddle deeper into the ocean to hopefully see whales after the 3 hours are up for snorkeling. However, this is group-dependent. My group had a few people who ended up seasick, and due to this, members of our group turned down the offer to go whale watching when Andres offered it. I was personally bummed out, but it is what it is!
Anyway, I highly recommend this tour to anyone who wants something mild yet adventurous in Maui!