4 days ago 2
The only time I've blind bought perfume after getting into this fragrance hobby is when something is strongly recommended by a fellow reviewer who has tried a lot of different scents, whose reviews I like and trust, and whose tastes overlap somewhat with mine. So far, it hasn't steered me wrong.
For me, a helpful review is detailed and gives me confidence that this person has actually tried the fragrance at least a few times, in different conditions. It doesn't have to be overly long, but it shouldn't be a statement either. There are some folks on here who've written tons of reviews, but I have to agree with @Ninamariah: a lot of those are written in haste, they lack the detail that matters to me, and they are so boring, like the person just sprayed a whole bunch of stuff, sniffed for a few seconds, then wrote something. Those reviews usually start like "This one is...," "That one smells...," blablabla. The pace at which they pop up, too, 30 per day makes me wonder if this is a bot or just an incredibly dull being. And no, these aren't just folks moving content from other sites: the people who care about fragrance so much to take the time to do that generally don't write such insipid drivel.
I agree with those of you who mentioned the notes that stand out the most and how the perfume evolves in different conditions. Yes, some scents that superficially appear similar based on the pyramid of notes can be entirely different creatures based on the concentration of ingredients and the blend.
All in all, for me a useful review is written with detail and passion and I generally like to know how much experience that reviewer has.