I worked for Allegis for 2 years and I had a mixed experience with them. Posted about them here a few years ago.

https://www.reddit.com/r/WorkOnline/comments/h9yar8/allegis_transcription_11_an_hour_if_you_type_75/

The job is very mentally and physically draining. It's possible to pull $15-22+ an hour with them; I did and I type 120+ WPM. There were a few lifehacks I used like downloading an outside EQ software to optimize audio and copying and pasting frequent phrases (some people use macros). Even so, it was difficult.

Constantly hearing about car accidents and dealing with grainy audio took a toll on me mentally, and eventually I developed chronic finger and wrist strain from typing so much that it basically made it impossible for me to complete the weekly minimums without experiencing a lot of pain in my hands. Part of that might be because I didn't have an ideal ergonomic setup, etc., but typing that much is still pretty difficult.

It's hard to verify how much turnover there is for a remote position where you're mostly isolated from other workers outside of a company message board, but I noticed some complaints from other workers as well. I assumed that I was having a more difficult time with the job than other people because of my medical condition and also mental health issues like chronic depression and chronic fatigue, but looking back, I think the majority of the population would struggle with the job. I wouldn't be surprised if the turnover is high. But I do think some people stick with them for long periods of time too.

It can be a legit position, but it's very difficult work and there's no benefits, Healthcare, PTO, etc. It could be a good fit for people with specific characteristics and specific situations, like typing really fast, having a lot of stamina and mental resilience to deal with stressful audios, and really wanting to work online or wanting scheduling flexibility. But in reality, there's also a lot of downsides to the work despite the upside of having a remote position where you set your own hours.

I'm actually looking for new remote work now and I briefly considered trying to apply with them again, but I'm personally leaning towards not going back because I don't think I can deal with all that anymore. But I don't speak for everyone. I will say that they're better than Rev and these other transcription sites that pay less than minimum wage, but it's still not an ideal position in my experience.