I think the most impresses about bitcoin is anonymous, as we know that the current privacy requirement is very important and bitcoin has understood it so it makes me very happy and likes the anonymous features.
I think there are a lot of other features that we can be impressed about when talking about bitcoin, right? There is anonymity and also decentralization, but what I was impressed most by bitcoin is it's feature of quickly changing it's price. The price increase quickly and now it is like 10 the price before the first month of this year. We don't know what may happen but all I know is that bitcoin for sure will continue to pump.
Anything impresses me about bitcoin. The technique behind it, the development, transaction, blockchain ledger. There are lots of factors in bitcoin to get attracted. We didn't see most of them yet, but we still have time ahead.