I tried it a couple of times in the 90s when I was offered lines, and it felt very nice indeed. I never tried to acquire any grams for myself though as the price was way more than I could justify, and I was kind of wary about how good it had felt and the potential issues that could cause. Especially also considering that I had access to great speed at that time too, and so much more affordably priced too.
Then a couple of years ago when then price had come down a lot, (or stayed the same but was cheaper in real terms due to the inflation of wages etc) and as I had a bit more disposable income, and the opportunity to easily acquire some had become available, so I tried it another few times. I found it really a major let down. One of the dealers who was apparently a heavy user, had said that it was mega-strong too and that I should go very carefully. If that was true then it means that either I have become immune to coke in my middle age or it is just shit now. There was no enhanced musical appreciation, no extra energy, no increased libido. Nothing! Not sure about what effects it may have had on social confidence as I took it at home alone, which was probably not the best way to use it.
On one occasion I did find it very nice on one particular day when I had not managed to sleep the night before. I got a gram of coke out and it rescued that day, and it felt very pleasant and chilled. So it seems to me that apart from using it to keep you awake and feeling nice if you've not slept the night before, then it's not worth bothering with at all I would say.
One interesting thing I found was that I got exactly the same stuff from a guy I knew through my job at 1/3 of the price of someone I knew who helped me obtain it off the dark web. I think it was £20 or £30 for a gram off the work guy as opposed to £90 a gram off the dark web guy. The stuff was identical in every way. It could have been from the exact same batch. I was surprised by that. Maybe the market was just flooded with that particular type of cocaine at that time.
I suspect 2 things have happened. Either Coke was much better in the 90s and earlier, I have heard many people say this, or perhaps also my ageing brain receptors are becoming less receptive. Not quite sure about that though.