I tested Breathing Color Belgian Linen last week, not in-depth, just an rough impression.
The color gamut and D-max is good as Lyve canvas, but image detail is superb. It's incredible for an inkjet canvas. I printed the same image on both canvas and immediately found the difference by eye, no need any resolution test charts.
I think Belgian Linen is a breakthrough canvas, but sadly, the price is breakthrough too...