Although Tor is better, because the connection reroutes dynamically. And worse, because anyone can volunteer to be an entrypoint or endpoint - this matters because a very well-resourced adversary could conceivably control both your entrypoint and your endpoint, and use a timing correlation attack to de-anonymize you. But I don't know that nested VPNs are immune to that either, given the level of invasive surveillance 5-eyes has over the entire internet.