It is definitely overkill. The only reason I have one is because it was free for me so I hooked it up. It's easy to set up and you have the remote access/control ability. It is pretty loud when it runs but oh well. You can turn off your pumps to coincide with feedings... this is overrated in my opinion as fish know how to get food in a current.
More than once I've gone to remove the food barrel, only to have the lid pop off and tons of food spill into the tank. Design is less than optimal here. The food door is also not as variable as it should be for smaller pellet sizes. You either get 10 pellets (first notch) or 200 (second notch). There isn't really a way to get 50-100 pellets (for example).
In my opinion, the only reason to get one is the ease of use as there is no need to reprogram it after a dead battery (compared to other types). But I'd never pay for a new one.