Very percussive. Tight lows. Excellent full midrange. Low sustain, especially the e string. Didn't notice any intonation issues. Great feel, not as polished as la Bella's, but in a good way. Stiff feel, as you'd expect, but lower tension than some flats. If you want that old school chocolatey thump, but want more midrange than the classic la Bella's, these are for you. One complaint is that the e string is noticeably thumpier than the test of the set, this is kinda an old school flat thing though. The purple silks look nice. Not stupid coloured ball ends. Classic strings.