This was my second time purchasing missha perfect cover, i decided to get the larger size in the darker shade for summer. It works excellently as a sunscreen provided you use enough, and reduces redness and irritation from acne. I don't think it lightens your skin tone overall which i  prefer but it reduces pigmentation from damage like acne scarring and unevenness like around my nose and forehead. I have quite an oily t zone and i do find this a little too dewy for me in summer but i still love it enough to just powder and touch up partway through the day. I find if you touch up it can last for an incredibly long time, and can even be reblended into the skin and still look nice after something like 16hrs which may be useful if you work long days and cannot wash it off and reapply (although not very good for the  skin). It has a very natural dewy look on the skin which is lovely, it is one of the nicest foundations i've used and it even has skincare benefits too! It covers almost all redness very well, and while it can't cover deep purple almost black acne scarring by using a colour correcting concealer and gently sponging it on top you can achieve a very beautiful, skin like full coverage look even on bad cystic acne which i wouldn't have thought was possible. It also mixes very nicely with other products, i've experimented with mixing it with a mattifying primer to make it last longer on my t zone and it works fairly well apart from the primer seems to stop it from oxidising to a natural colour, or at least it takes much longer. However it is overall an amazing base which absolutely deserves it's cult status and is so wonderful that i've persevered with trying to make it work with my super oily summer t zone despite not being very suited to it.