We are arriving at Poly 2/28 for just 3 nights after our Dream cruise so the pool being closed is a big problem for us. I did briefly consider switching to CR (we stayed there last year and love it) but have always wanted to try Poly. Plus, we have dining reservations already at Kona and Ohana and want the convenience of the monorail for our two park days at MK and Epcot. Our kids (5, 7 and 9) will be disappointed if the volcano pool is closed but I look at it this way: It might be open, they might allow us to use another pool (in the past they've allowed guests to use the GF pool and it would be great to be able to check out the GF) or the weather may not be suitable for swimming. SO, we're staying put. I actually switched from Poly to CR last year after I found out the slide at the poly would be closed when we were there. Wouldn't you know when we got to the CR and got to the pool area-that slide was closed also. Never a word about it on here or from Disney (even at check-in). were we disappointed? yes-for about 2 minutes. There is just so much else to do-you'll be fine! And my point is that no matter how much you think you've prepared there are going to be things that happen (like closures) that you won't know about ahead of time. It's all in how you look at it. When we got to the CR pool after check in last year the water play area was also not turned on. I was disappointed for the price we paid that these things weren't working and here I had "talked them up" to my kids to find out they werent' available. I was annoyed for a bit that nobody even mentioned it to us at check-in. BUt, as I said my kids were over it in few minutes and found other things to keep them busy. SO, I chose to let it roll off my shoulders and not define my vacation.
I do have to disagree with a pp who said they were at Disney last year first week of March and it was not swimming weather. Granted we are from northern VT and will swim in weather that most people won't, we arrived to Disney on Feb 29 last year and for the next several days it was 90 degrees. I consider that swimming weather for anybody! BUt in previous years the first week of March has been cold. Keeeping fingers crossed we find sunny hot temps again this year!
GOod luck OP. I know where you're coming from. When we went last year it was our first time and we were only staying two nights and spent a fortune! I wanted it all to be perfect. It will be! But remember-it's all in how you interpret it!
Kac