Before I got FollowLiker, I'd say that I would be constantly be researching and comparing different IG accounts with the same niche, tracking their followers, and likes/comments. That would require me to spend 2-3 hours since I'd literally be manually managing it.
After getting FollowLiker, it's just like wheel said - you're pretty much on autopilot. As long as you're not getting greedy and having insane settings that can get you banned, you should only be spending a minute or two periodically throughout the day at work or school to track the results. This varies also, depending on how many accounts you're managing.