Having recently visited both the Museum of Flight in Seattle and the Heritage Flight Collection in Everett, we weren't expecting much from this smaller museum in Bellingham. We were very pleasantly surprised. The front room boasted war memorabilia with personal stories and touches that made it a pleasure to explore. Then we began our actual tour. We were paired with a tour guide who probably spent at least 2 hours with us, giving us detailed information about each plane, letting us take our time to ask questions and take pictures, and even letting us climb up on the wing for some of the planes so we could see inside the cockpit.
As if that wasn't enough, we then got to go behind the scenes to the garage in a separate building to meeting two mechanics who were working on replica planes. They stopped what they were doing and spent about an hour with us, talking about what went into making the planes, showing us pictures from where one of the planes had flipped and the resulting damage, talking about the strengths and weaknesses, etc.
For all that the other museums had more to offer in the way of quantity, Heritage Flight Museum was by far my favorite in terms of quality - I've never gotten so much information and such an up close view of these types of aircrafts. $5 a person is such a steal we felt guilty and left extra money on the way out. Looking forward to going back for a fly day. :)