This is the only E string my violin seems to love. It's incredibly easy to play on, sets up in under a minute, and sounds absolutely incredible. Playing at any dynamic is a breeze, and it's incredibly responsive. While it's not as loud as many of the wire options out there, the tone quality more than makes up for it. The complexity of sound- even above the shoulder of the instrument is astounding. Many audience members and students have remarked that my violin doesn't ever sound piercing or painful up high; the projection and tone quality are superior to everything else. It never whistles, never sounds strident, but has excellent clarity and projection anywhere on the fingerboard. I keep trying other options to see if there's anything better out there, and within a few weeks I always return to this string. It's really that good.
I realize this string is pricey, so I often recommend the Warchal Amber E as an alternative to students. While it doesn't last nearly as long as the Vision Titanium and doesn't have the same effortless clarity, the Warchal is a great sounding non-whistling string for 1/4 the cost.