Hi,
1. I have been working in Appen as a remote transcriber.
2. It depends on the project but mostly will be paid per transcript. The projects are just a short phrase or maximum of half minute, so the pay is just around AUD 0.05 per transcript. Usually, I can get around AUD 6-7 per hour.
3. 4 years.
4. I am still an active freelancer at Appen but I only get job when it's available.
feel free to message me for more questions :)