The product is perfect for me, offering a great tone with a long life for every set of strings. I've found that many bass players have sweaty hands and struggle with their strings, leaving them to change a set at about 2-3 months, for me (a not so sweaty dude) they last at least 8-12 months. Also played them once for about a year and a half with no problem.
I would recommend them to any bass player, if not to stick with them, just to try a set once to see if they fit you.