Yes we have implemented both plus Watson and at least IMO Amazon's transcription was the best, followed by watson and then Google. Which has honestly a big surprise to me since I was expecting something more like Google, Amazon, big gap and then Watson.
Also one thing I liked about it IIRC is that Amazon was the only service at the time that offered punctuations (to mark end of sentence) in English which is very useful in some cases.
Yes. The segmentation of sentences is critical with a lot of downstream integrations you might want to use (translation works best within an aws environment when called sentence by sentence, and doing any sort of sentiment analysis or entity detection is also affected by sentence breaks)
Also one thing I liked about it IIRC is that Amazon was the only service at the time that offered punctuations (to mark end of sentence) in English which is very useful in some cases.