Tension wise, the are similar to Daddario XL and a bit more tighter than I´m used to since I´m mostly used to roundcore DR strings. These are hexcores. Nickel gives a very sparkling tone och nice playing surface and these string are comfortable to play. The seem to last for a while too. I´ve had them on for a while now and still sound bright and clear after a few gigs. The B string is what I enjoy the most. Compared to DR, the Sadowsky B have a more firm sound and sound good even after the 5th fret, which is a bit unusual. So, nice strings, good quality, good sound and a good price.