Once you submit your take home what do you think happens? We do it at my current company and I usually spend around 45minutes to review a take home and submit (

Once you submit your take home what do you think happens? We do it at my current company and I usually spend around 45minutes to review a take home and submit (what I think is) useful feedback. And I have to do a few a week. Definitely takes some of the company's time. What method do you prefer over a take-home?