Yep! I have both a FJ jacket and pants in rainwear that I bought years ago. I don't use them very often so they've lasted a long time. But, they're heavy and hot!
They were made before GoreTex and other waterproof, breathable fabrics.
My advice? Get the absolute best you can afford! They will last you a long time, they will keep you comfortable, they will be light, and they won't impede your swing very much.
Thanks for all the responses. I think this boils down to the context of the situation. I had two of the foursome busting chops about hitting out of order on previous holes. Then the first time it was mildly inconvenient for them to wait, the holed out just as i hit the green. Mind you. This wasnt an "adventure" hole.. I hit the green on stroke 5 because of a flub shot that went about 10 ft. And an errant approach that left me about 10 yards short of the green. In any other case I agree that its perfectly fine to hit when ready, but not if you complain about hitting out of order. I guess to paint the picture, one whipped a club on the 3rd hole due to sculling a shout out of the bunker.. on another hole had one of them walking towards green right in front of my approach.. he nicely moved about 3 yards to the right as i asked him to move. As karma would have it, i hit the shot straight at him and nearly hit him.. these were friends of mine.. so a lesson learned to play golf with different friends..
Picked one up and checked it out in a store the other day. First thing I noticed about it was how heavy it was. Reminded me of when I went out for the HS golf team, and the coach had a Driver with a solid steel head on it.
He advised us that we were NOT to hit drives with it! It was for warm up only.
Being as heavy as it is, I think the main benefit to it might be that it slows your transition from backswing to downswing. There's a whole lot of guys who could use that!