I did it and I agree with other posters - it's more for a once in a lifetime vacation. I stayed at GF on Platinum for 32 days alone. No kids, no family members, just me - as always. Yes, the gold plan would have been enough but if it had not been for the room service feature of the Platinum, I would have been more ill than I was. I picked up some nasty bug and was bedridden for about 5 days - room service brought me grapefruit juice and crackers round the clock.
Yes, I would refer to the Platinum Plan as "eating your way thru Disney." But I did something a little unique, the last 3 days I had 48 meal coupons left to use - there was no way I could use them, so I took total strangers, and even some CMs, to dinner, to lunch and even to breakfast. It was very satisfying, for me.
Would I do it again? Not Platinum, but gold, for sure.