I have the French version. Phrases are very colloquial and useful, and the voice, notwithstanding the somewhat rough audio quality, is representative of real, native speech. Nice to have the ability to slow it down or speed it up.
To be truly great, this app needs to add categories and phrases. Maybe I fall outside the target audience, but there are lots of travelers and expats that are not looking to pick up a date everytime they head out the door. Beyond the most rudimentary phrases, half the categories are dedicated to "flirting" and "insults".
I suggest the developers reach beyond the 14-24 demographic in future versions and try adding categories for sports, the weather, jobs, hobbies, kids, real estate, computing, movies, geography, the environment... you know, stuff adults talk about once they actually have a date or - imagine - are married with kids!
Anyway, a very good version 1. Keep the phrases and categories coming and bump up the sound quality for a real winner.