Looking into getting help of a medical transcription service

Hi all, I’m in urgent need of a medical transcription service. I have read from online sources that professional transcribers charge per hour. I’m not sure if it is the same with all transcribers. Has anyone here used or currently using a transcription service? If then, I would like to know more details such as how the whole process is going to be, the cost etc. One of my friends recommended using a medical transcription service in Syracuse and I’m considering them. Wondering if anyone here has any other good recommendation for a transcription service that is accurate.