Not too bad. It does have a coffee taste, idk if I'd call it espresso though. My initial impression was that it has an overwhelming sickly fake taste, kind of like with a cheap coffee candy or icecream. However, as I continue to use it, that fades into a much more subtle fake flavor. But that may just be me. I have a very sensitive pallet to certain flavors. Also keep in mind that I am using this in a blank tank with a brand new tankomizer; the new tankomizer may be slightly to blame. Although I am overall satisfied, with a nice throat hit and perfectly efficient nicotine delivery, if I had to go back in time, I'd get the Kona again instead. I strongly prefer it.