Great flavour like all the other Matouk sauces. As for spiciness: I licked some off my finger and was disappointed at first because it didn't seem to be as hot as I had thought it would be. Don't get me wrong, it is hot, but not the hottest I have tasted.
I decided to mix some into my bowl of pasta and BAM was it hot! While it is not the spiciest, it has a great flavor and a little bit goes a loooooooong way.
If you are looking for something that isn't "burn your tongue - hot" but powerful enough to heat up a pot of chili with about a tablespoon; then this is the hot sauce for you!