I'm on 560+ days streak & use the free version ( I've tried Plus & find it to be relatively similar) It is great to help you build out a deeper vocabulary. It's terrible to build skills to begin to speaking in your day to day. The practice phrases are essentially things you'd never say or use like "There are no penguins in the North Pole" Ordering a meal or drink is much more valuable. Asking for something to go or how much it costs is more useful. Good to practice, bad for actually speaking