Never really heard about this project before, but sounds pretty promising. Have they made successful ETH swaps on The Raiden Network yet? That's all I want to know

XSN decided to go with Connext instead of Raiden because it is stable, you can use real ETH instead of wETH and they actively work towards 3rd party integration.

According to the Connext devs, ETH interop has been running in production for 3+ weeks with 0 downtimes.