Paypal transactions, Swish (Sweden), etc. etc. are instant and often with zero fees.
* Fee is not dependent on amount of money you're sending. You can send $200M worth of Bitcoin to a company in China and it will only cost you $1.50, try doing that with a wire transfer.
* Transactions are "final": after 3-6 confirmations you can have a great degree of confidence it won't get reversed
* Compared to Western Union or MoneyGram, it's still faster and cheaper
But in its current state, bitcoin is definitely not a replacement for your Visa card when buying groceries at the store. Maybe Lightning will change that though.
2. So, if transactions cannot be reversed, and I erroneously send money, or am tricked into sending money, I can't get it back?
3. So, BitCoin wins only when compared to Western Union and MoneyGram. Oh, what an achievement.
In it's current state bitcoin isn't a replacement for anything, really
Not that this is a whole lot better, but the cost is $1.48 for fastest confirmation time, and $0.42 if a delay of 15-300 minutes is acceptable to you.
Source: https://bitcoinfees.21.co/