I didn't know about this wallet until I came across this thread, and after checking it out, I must say I'm impressed, It has all the features the average user would ask for. Open source, fees customization, fingerprint encryption, full SegWit support, and most importantly (that you already mentioned) the ability to connect to your own node, which is a feature that Mycelium promised a long time ago and failed to deliver. The only feature I would like to see in the future would be Trezor and Ledger support.
I would continue to use the wallet, but I wouldn't recommend it for the storage of large amounts. It might be open source, but the team behind it is unknown and the source has probably not been checked by other developers yet, as it's new on the crypto scene.
If anyone is interested in seeing the wallet in action without installing it, check this review, it covers almost all features:
https://www.youtube.com/watch?v=b_KDf5WYfzQ&t=1s