I had written about it a couple of weeks back regarding how the tech was. Looking at the github repo and the source is the way to go. It has been going good for me. Good times !!
REQ is another one which has a good backing going for it. Ycombinator is going to pump it up good.
https://steemit.com/xrb/@brajan/buy-raiblocks-xrb-zero-transaction-fee
Thanks! I'll check it out!