I had a Henriques 35 Maine Coaster for many years. It was a short cabin, flybridge, certified passenger boat with a single volvo. It was simply a super tuff little boat with some supurb workmanship in the construction and wiring. Everything worked well on her and I put almost 10,000 hours on the volvo with no major trouble, so I have lots of time in that hull.
The single 300 hp engine that I had made it no speed demon but it did everything I needed it to do and more. It was super economical to run right at 7 to 8 gph going 12 to 14 kts - loaded heavy. The handling is as good as most any other small single screw boat and straight down a big following sea is not the best point of sail. That said, just angle off a bit and settles right in. They take a head sea very well for the weight and size of the boat. Like any other slower single screw boat, a breaking sea in the inlet requires good seamanship.
I liked mine a lot and would still have it today, but I sold it during a time of change in my professional life. I would own another one and talked to Henriques about a new boat before I ended up with the used Duffy I now have.
They are all now many years older, but the hulls are probably still in great shape as they were heavy built and done right. The only issues might be owner applied changes to the systems, wiring, etc.
You can contact me direct if you want to know more.