Many people, myself included, like the ride quality of the Hensley. Service is excellent too. However, another reason for considering it is that the investment stays with the truck, not the trailer - so if you sell / trade your trailer in a few years, you don't have to invest against in a specialized pinbox setup.
Not referring to ride quality. The ride quality is OK with our hitch and I like being able to adjust based on our load, which changes based on trailer loading (toy hauler). And it gives me the ability to raise my pin box above my truck's roll top cover rails. But I would get that with any air ride hitch.
Service and serviceability is what i was referring too. You have a BD-3, so I don't have much to say about it. Never saw one. But, the hitch head appears to be the same head assembly used on the TS-3, which I have. In fact, in the BD-3 manual, the TS-3 is shown for reference.
I can understand that parts can wear, and if the wear items were available I would be a bit more enthused. But, you cannot buy any parts for the upper hitch assemble, only a $600+ complete hitch head unit.
Next time your trailer is unhitched, jump up in the bed and see how much play is between the saddle and the pivot pins. You can't properly grease those areas and you can't buy the pins when they wear out.
The actual saddle should never wear out, so would should you be forced to buy it?