CashU feels and behaves similar to LN. You can send and receive payment to/from LN flawlessly. It's very simple actually. 

 I've yet to see anything that is as simple as installing WoS and zapping.  

 Believe it or not, it's just as simple. In addition, unlike WOS, it integrates with nostr. 

 What advantage is "integrating with nostr?" 

I don't do anything but send zaps with  WoS and that's it.  

 You can send zaps directly from your wallet to nostriches without accessing nostr. 

 OK. 

I don't see the point of that unless they are in person or something.