Overwhelmed by the spice/heat at first. Let it sit for a bit and still get a heartburn type feeling from it. Add a touch of water and this opens up. The sweet vanilla, chocolate aspects come in. Maybe they were always there but I couldn’t find them before. I also tried this with a bit of ice and got the same. Weller and Blanton’s are my go to bourbons. Belle Meade (Nashville) is second and has a wonderfully varied/diverse lineup. Both I love straight up. This is quite good with a bit of ice or water and probably follows them.