This is my HG foundation along with Nars tinted moisturiser. I have been using this foundation for a year now and I think it's long enough to tell you what I feel about this foundation.
First of all, I'm Asian with NC20-25 skin colour. I have yellow undertone, and shade B30 is a perfect match for my skin.
The texture of this foundation is creamy, and easy to blend. I usually use BB to blend for everyday wear, or if I want more coverage I will use Sigma 80 kabuki brush or Chanel foundation brush. It provides enough coverage for me since I don't have acne scars, only some redness around my right cheek and forehead, along with a slight discolouration around my chin area. It covers my redness pretty good, and I ended up only using concealer under my eyes. I'd say the coverage is medium to full. The finish is more to dewy side but not too shiny.
Depending on my skin condition, this foundation never really oxidized on my skin, except during a really humid day, it'll get slightly oxidized but nothing too crazy.
My skin does get oily throughout the day esp T zone area, but I think it's normal. The staying power of this foundation is pretty good (I use Nars translucent powder to set the foundation), but, I never wear my foundation more than 8 hours. But during that 8 hours, it stays and I only need to blot a bit with blotting tissues.
This foundation always makes my skin looks incredibly good. It looks natural and it actually brightens up my skin. And because it's a perfect match for my skin, I look like wearing nothing. It's pricey, but honestly I think it's worth every penny. One bottle for me lasts a pretty long time.
My suggestion is, if you want to try this foundation, get the sample either from the store or Sephora first before comitted to a full size.