Indoor ski slopes are great for training or learning to ski, all year round.
But they do have some issues, as the snow doesn’t fall from the sky and gets renewed as often as outdoor slopes.
First one is that accumulating wax gives the snow a bit of yellowish look. Not the end of the world, but people do love white snow, not yellow one ☺
More important however, is that all that wax gives a sandy grainy feeling. That’s why people often refer to bad snow quality, when talking about indoor slopes.
Of course this doesn’t have to be this, with Gigaglide products the snow quality will never suffer from the ski wax deterioration.