Why we choose ESR over BTC? 
ESR Coin is fully compatible with the Bitcoin API and can be easily integrated into existing applications that already offer Bitcoin support.ESR Coin can contain many transactions with a block creation period of 30 seconds and runs fast. (In the case of bit Coin, one block is created every 10 minutes and can contain about 1500 transactions in one block.) It can process 20 times of transaction volume compared to BIT Coin.