22/25 Treasure Chests for 1600 Gems Worth It?

In addition to getting the free treasure every 15/30 minutes, there are the other two options of: a single treasure chest for 80 gems, and, secondly, the 22 treasure chests for 1600 gems. As of recent, this big package is a “special offer” of 25 chests for 1600 gems. I’ve been saving up gems for a while now and finally have enough gems for this. I am tempted to get the 22/25 treasure chests. My question is simply, is it worth it? Anyone who got this package want to share what you got with it? I don’t want to just get a bunch of golden duck spells, blizzard spells, or small amounts of feathers.