Adding to the previous review of HVN:

The gate area after security has a small canteen with some premade sandwiches and other drinks and snacks. We got there very early for our flight and there were about a dozen sandwiches available and none for restocking (when they were sold out, that was it). So if counting on getting food at the gate, get there early.

The "park and walk" parking area is a pretty long walk, especially if you end up parking at the far end. I didn't try the economy lot with the shuttle. No point in paying inside the terminal if you don't want to or can't find it, you can pay as you exit. And with only one lane exiting, you have to wait for everyone else in front of you who is paying at the exit. Also, was a bit surprised at the price - $18/day. Other regional airports tend to have more reasonable parking costs.

We were seated in the exit row (so about 13 rows back) and by the time we got into the terminal, bags were already on the belt. Something to consider if you are concerned about long waits for your bags - not a problem at HVN.

HVN has a short runway. Be ready for them to slam the brakes on about as hard as they possibly can upon landing.

Some relevant pictures

Gate waiting area

Food options - notice only a few sandwiches

Other food options.