Used ACG PROFUMO should I buy?

My friend has a ACG PROFUMO and has used 5-6ML of the bottle out of 75ml he's trading it for YSL babycat I have. Only thing is, I don't understand about how long does a perfume retains it scents after opening. He has bought the bottle in 2022 and opened it the same year. Since then it has been on his shelf and I really wanted it from back then. Should I trade my bottle for the Profumo bottle almost 3 years old now?