Practical Sailor published a 2 volume set of sailboat buying books
in the 80's. In it they describe Irwins as boats of "mediocre quality & finish" with hulls built with minimal layup
& a lot of cosmetic flaws. They describe deep hollows in the hulls which I witnessed firsthand when I worked at a marina. This was due to pulling hulls that were too thin out of the molds while they were still green in an effort to rush production. They also suffered from defective gelcoat
. The hull
joint is overlapping flanges with polyester slurry fastened with self tapping screws. These were cheaply built mass produced boats designed to provide the most bang for the buck. If you're just looking for the biggest boat for the least amount of money
they might fit the bill but I'd consider a better quality option.