The app does what it says. In my case, I use it to transcript podcasts into reading as I prefer to read and takes notes (especially some marketing and business podcasts). The transcript is very accurate. I tried it in English and it was very spot on. When transcribing from an English podcast to Spanish text was a bit "need some work". But other than that (it can be traduce if necessary with another tool but will be nice that the option works). Anyway, for me, it's still a 5-star tool. A video of 20-25 min was processed in a couple of minutes.

I tried Tier 1 and I was using it so much that I am now a Tier 4 customer.
100% recommended.