In our 2011 Greystone, we had the Euro style recliners and ottomans deteriorate in only two years. The leather style finish cracked and peeled. We replaced it with similar but much better quality chairs we found on Amazon.
We tried to keep the interior of the Greystone at somewhere between 55 to 65 percent humidity and temps in the 75 to 85 degree range during the times it was stored in our backyard but the chairs and ottomans still failed.