We had a 45 minute tour of the Everglades with 6 other people on our air boat which was a nice number. Willy was very informative and said he'd been going out on the boats since he was 11! We saw a handful of Alligators who came up to the boat and other wildlife which our captain told us lots about. It was a really fun and relaxing trip and I would definitely recommend it.
One useful bit of info that would have been of benefit to us was that the directions you get once you book a trip are to a gas station and you meet someone there who you then follow in your car to the air boats. My husband and I were driving up and down the road like idiots looking for an office or shop for about 20 mins but thankfully we allowed enough time for getting lost!!