Go with the 10 pack instead
I got one of these boxes a few years back and it was really just a nightmare. The wound strings all catch on each other and I ended up having to cut open the packaging and untangle the strings every time I changed strings. This obviously pretty much defeated the purpose of the packaging design.
The other con of this product is the lack of sealed packaging to preserve the strings. This isn't a problem if you're a touring musician and change strings on a nightly or even weekly basis. But if you only change strings every few weeks to a month, this box will last you as much as two years or more. While that's cool to not have to worry about buying strings for that long, after two years of sitting in exposed air, the last few sets of strings were completely dead.
I still use D'Addario strings, but as I mentioned in the title, I go with the 10-pack instead. Just less overall hassle and better long term quality.