It would stun me if you didn't get exactly the reactions you are hoping for. My husband and I were there for our anniversary a couple years ago. It was our second wedding anniversary but we had actually been together for 20 years. When we were getting our pins they asked how long we had been together and without thinking I said twenty years and then my husband made the correction that we had only been married for two. The desk clerk asked us which number she should write and when we sort of dithered, she wrote 20 YEARS! with a Mickey head as the dot on the exclamation point under the Happy Anniversary message. We wore them all week and people were amazing! Photographers insisted we get closer, that we do kiss shots, characters were just over the moon. I'm pretty sure Goofy's friend in Epcot was a big 'ol queen. There was a ton of free cake and so many well wishes. I kind of expected that from cast members, but I was truly taken aback at how many other guests wanted to talk about it. Plus we had someone send over a bottle of champagne one night and someone picked up our tab at Nomad in AK.
Congratulations! I'm confident it will all be magical!