Have the same experience? No. I adore the flavor of fatalii - adore. For me, there's a huge difference between the fatalii flavor and (not sure if you meant a scotch bonnet crossed with a brain strain or if what is there is unintentional) brain strain and scotch bonnets.
But here's a question for you - can you tell the difference between, say, 1/2% milk, 2% milk, and whole milk? Not everyone can, but I can. Lots of people can, so I'm not exceptional in that. But lots of people cannot tell a difference between those types of milk. Similarly, not everyone can taste the differences in various chiles.
I think it is too hard to explain a flavor difference, given that we all experience tastes differently. Better to try a lot of different chile types and decide for yourself how they taste to you and whether you like them or not. Besides, trying a whole lot of different chile types is a lot of fun!