Yeah, it looks very promising. I see that like a new "custodial" nodes service but you own your funds. I think it's at the moment the best security/easy to use ratio

dolu

This is a really awesome design. While your keys still need to be online, they've decoupled the keys from the daemon which I hadn't seen before.

Greenlight allows anyone to boot up their personal Lightning node on our cloud infrastructure in seconds and take full control over their funds. The private keys, required to sign both on-chain and off-chain transactions, never leave the user’s device.

bitcoin

Greenlight by Blockstream: Lightning Made Easy

This is a really awesome design. While your keys still need to be online, they've decoupled the keys from the daemon which I hadn't seen before. 

> Greenlight allows anyone to boot up their personal Lightning node on our cloud infrastructure in seconds and take full control over their funds. The private keys, required to sign both on-chain and off-chain transactions, never leave the user’s device.