Yep, I'm with @TattiePants and @HorsePellets. I'm in my late 50s with rosacea. I know, through years of (painful, with rosacea) experience, what suits my skin. If I used, say, Mother Dirt Moisturiser, which is in her kit, why would I suddenly start using the other 9 random items? Because she says so?
If Mother Dirt items worked for me, I'd be sticking to them, not adding Demologica, Medik8 etc as random items. It's like she's done a supermarket sweep in Boots!
For example, on my skin, I used Nivea Micellar water to cleanse, Simple moisturiser, a Body Shop (I know) serum and Soolantra if my rosacea flares. That's it. That's what my skin can cope with. So the £300 box of tricks only works for two reasons a) you would use all of these products anyway so you're saving money which is fair enough or b) she's a damn good marketeer.
As her skin looks no better than my sister, whose the same age and uses supermarket brands, I don't even see how the products help. If they did, her own skin would look younger/firmer/brighter or whatever and it doesn't. It looks fine, but nothing special. And if I spent £300 on a box of tricks I'd want to look special, not fine.