They have been shocklingly competent for international transfers. Most things just work through the app, and the few cases where I had to deal with support it went so smoothly that I assumed the support agent was bullshitting me and I'd hit a wall later (I didn't). Exactly the opposite experience of what I'd expect from a "neobank" and much better than "real" banks.

Even the KYC process the first time I was making a larger transfer was surprisingly smooth.

Currency exchange fees/spread with "classical" banks are absolutely prohibitive.