This is so really hard to say special cause its difficult to explain specialty in short word
Some of them are given below:
Its a type of currency which know as peer to peer currency and this permit to send and receive money without help of broker or third party involvement
Every bitcoin holder can review their account information after sending money or receiving money from their account.
After all kind of transection bitcoin recorded sufficient proof of every client and account holder through different facilities.
Buying and selling process is so much easier than other currency
I think above mention quotation is sufficient for proving that how much special the bitcoin is.
What's the best about cryptocurrency is that you can make the price of your coin increase by just holding it for a very long time and because of that people are keep on getting interested on it and it makes the volume in the market increase so the price does also, it is just the same as a chain reaction to everyone.
I think number of reasons make bitcoin more special than any other currency. For example bitcoin is the currency that we can use for shopping online without changing it in to any other fiat currency, the second is that in most of the online they have the option to use bitcoin for shopping online, bitcoin is also best for investment, because it can give us a good profit in a short time and bitcoin investment is the most safest investment in the world in currency time.