i haven't noticed a dramatic change in my skin since beginning my use of this several months ago, but i can say that it doesn't dry me out or cause breakouts, which is usually my issue when my skin doesn't agree with something. that having been said, it did take a bit of time for me to adjust to this product, and i experienced some slight chemical burns in the first few weeks of applying it 2-3x/week, but these days i use it almost daily, even without a moisturizer afterwards (most moisturizers break me out, so i avoid them unless my skin is getting obviously dehydrated).
i feel like i should give a less middling review, like i should know better the effect this product has had on my skin, but it's not the only acid i use and i haven't stopped using it for months now so it's really difficult to remember what my skin was like before. i will update if i notice any textural change in my skin once i run out but i'm not sure there will be. i do feel like my skin looks very bright and even the mornings after i use this, but that could also be the result of my salicylic or the peels i use. worth trying i suppose but at this moment i don't intend to repurchase. and for what its worth, if i DID feel the need to replace this glycolic in my routine, i'd probably spring for the ordinary's 7% version, as 5% is no longer irritating for me.
oh also i don't find the scent offensive at all, it sort of smells like a floraly sunscreen to me but it's not very intense. i am not sure if this product has added fragrance but if it does it didn't irritate my skin.