These strings are very cheap. First choice, if you are on a budget. I just wanted to give them a try and experience what I would get for my money.
I had no problems putting them on my bass, quality seems okay to me. But already then I noticed the scratchy surface of the strings. I also had no problems while tuning them. Everything's fine.
The Warwicks provide a very brilliant sound, aggressive highs, especially when played with a pick. The low end is okay. So all in all the sound is not bad.
The downside is that these strings are really really scratchy. The rasp the skin from your fingers. Nearly NO playing comfort at all.
I can't say, if they last long, because I ripped them from my bass early because it was too uncomforable to play them.
So... Great value for the money, if you are a really tough guy!