I installed about 2000 square feet of parquet in my home, twenty years ago. It was the cheapest real-wood option and I think it looks pretty good. In more recent renovations, I used planks instead. In part because the original stuff was no longer available.
Probably the biggest problem was cutting diagonal or non-square shapes into it. The whole "tile" unit would sometimes explosively disassemble in the saw. I ended up with some ragged edges that had to be hidden with trim. Doubtless there are "pro" methods for shaping it that I did not discover. Also, at least with the stuff that I bought, the square units were held together by a sort of edged wire pressed into the back side. Once they are glued down, it shouldn't matter. But on a boat, it seems like this stuff could corrode. (Possibly the cutting problems happened when a power saw snagged the wire...)
