The usual settling in time when fitting new sets of strings, but after this they give a good tone and are as easy to keep in pitch as any other uke strings.
Length of each string is quite long, so as to make the set Ok for either soprano or concert ukes.
Unlike Aquila the feel of the strings are smoother, being black they blend into the neck/uke body more cosmetically.
I replaced the strings on my ovation electrouke, concert acoustic uke and soprano uke - all give me a good tone, the electro-uke sounding nice with these strings.
I've got ukes with Martin and Aquila strings on - these cost me more money - but Daddario are as good so why pay more?.