Dean Markley pioneered the process of cryogenically treat strings in order for them to perform better, and these are more defined, brighter and bassier than their standard article. I would therefore not recommend these for guitars with active pickups, Lace Sensors or similar, as they are very clear in themselves. Nice 'ping' in the attack that evolves into a mellow, bluesy, rounded vibe.
Dean Markley has had quality issues with these strings earlier, that is now resurrected by different packaging. However as a consequence there's no longer the option of a wound 3rd with this set, which I prefer, so I'm a bit disappointed by that.