Not a 442, but I've carried a 642-1 (the stainless steel version of the 442) as either a primary or BUG for most of the last 10 years. The airweight J-frames are great for concealed carry. Like any gun, they have their strengths and weaknesses. Just be aware of that, and plan/train accordingly.
They can be challenging for new shooters. But if you have some experience with handguns, it'll be a bit easier.
Recoil can be stiff, but if you start out with light loads, like 148gr WC, you should be all right. Aftermarket grips can help. When you get used to the lighter loads, you can try the stronger, +P loads if you want.
I'd also recommend getting a set or two of snap caps. My personal preference is A-Zoom. They come in handy for dry fire practice, which is important to developing good marksmanship skills. As you progress in your skills, you can also use them to practice reloading skills.
Personally, I think every handgun shooter should have at least one J-frame (the more, the merrier...

). They're very handy for concealed carry. Even if you don't carry a gun, practicing with a J-frame can help make you a better shooter with other guns.