SPA on Nostr: Pro: it's faster than electrum, especially if you have a long wallet history with ...

Pro: it's faster than electrum, especially if you have a long wallet history with plenty of transactions (spent or unspent)

Con: I've heard it doesn't like unexpected shutdowns, like power outage.

More info if you want a deep dive:
https://www.sparrowwallet.com/docs/server-performance.html