Excellent review, my friend and an excellent choice of currencies! You are right, the BTS, STEEM and SYS have certain advantages over other currencies, since their movements on the market are very attractive as for investment, as well as for trading. Most importantly, these currencies have passed the test of time, even at the most difficult moments for all cryptography and this is the merit of developers of these currencies. I am sure that the BTS, STEEM and SYS will continue to show excellent results! Thank you @cryptographic