I used it for the free trial very recently, and Turing spinner is hands down much better. While it didn't create 100% readable content all the time, at least the mistakes could be interpreted as just "typos" or writer being someone non-native speaker. Personally, however, I wouldn't use those articles on my money site, despite some doing that, but for later tiers they're just perfect. Sent some to ArticlesBase just to try it out, and 50% of them are still online, while the other half was rejected afterwards - that speaks for itself.