What is so special that you like most and least?
The most: the duration of the 'brilliant' (compared to ernie ball), and the fact that sound better than the EB standard on my vox 25 (maple neck SSS strat-like).
The least: very expensive in stores. And a little disappointing in power chords, but it may be more related to the guitar (I did that for three months, and this is my first strat-like) as strings themselves. I'll have to try on custom 24 (more LP-like), and / or 10-52 in trying to get more bodies on the lower strings.
Have you tried many other models before buying it?
How would you rate the quality / price?
Well, I use the rope quickly, so in my case, no miracle, it is rinsed after one month at best - and when I say washed, put it mildly. on the other hand, it keeps the shine and comfort almost jsuqu'au end (it was like they prsque die overnight).
In short, they are somewhat expensive and do not take their promises, but it's still correct (and what I found best for this guitar at the moment).
EDIT: ah, yes also, there either (see the regular slinky EB), no problem of breakage, despite the stress that I make them suffer (in a tone bends 1 / 2 or more violent attacks, and more vibrato Vintage Start type ...).