I owned an Irwin 38 that I sailed all around Florida and the Bahamas. It is more of a classic looking vessel than the charter tubby Irwins that I suspect that most of you are talking about.
Let's face it, many corners were cut in building this boat. However, she was strong and offshore capable. I had to do things like rewire the shore power, etc. And, if I were going offshore, I might redo the chainplates. And she leaked pretty good. But I never worried about her in bad weather.