I had a Salomon QLab at 103mm underfoot, and currently have a Nordica Enforcer 104 in the quiver.
You definitely wouldn’t choose either ski if most of your day was ice, or very firm groomers, or even predominantly groomers. But as a “wide ski” with an intended use for moderately good fresh snowfalls and the groomers and tracked up conditions which follow, both are great.
Yes, you’d want something wider for very deep snowfalls, but those ones are rare.
I find that in those conditions both skis carve great (the QLab better and more precise).
I originally got the QLab as a OSQ travel ski for Japan, and a wide ski for fresh snowfall in Oz. I ultimately got another wider ski for the deeper powder days in Japan, and the use case for the QLab (or Enforcer 104) as a two ski quiver for Japan dropped away. It was a great OSQ for there, but as a match to a wider ski in a 2SQ, something narrower was better.
As a wider ski though in a quiver for places like Australia or Sun Peaks or maybe NZ or perhaps even Colorado I think that width of skis is pretty good.