Thats probabltly the biggest difference; personal experiences and reference points, but palate quality too -genetically speaking. For example; around a quarter of the population cannot, genetically, detect the smell of sulphur. So you may think your dram sings from the glass while the person next to you think its got stink on it :-)
I love doublewood, but i wouldnt classify the finish as long. Infact i do find it a bit short. But i am comparing it to experiences of very very long finishing whisky. So its on a relative scale.
Thats why revisiting whiskies you tried long ago is good, when you tasted them you did not have he perspective you may later have and it changes your perception of the dram.