To clarify, I don't do it so I cannot speak from experience. However, both my brother and brother-in-law do it in completely different ways and get completely different results.
My brother feeds year round and deer use it a whole lot like a plot. By far it's mostly does, fawns, and yearling bucks. Cruiser bucks come by to check during rut but otherwise what little action it gets from mature bucks is nighttime. This is on a 40acre property with two plots and intense habitat work. For his deer the feeder is just another type of food, not the big draw.
My brother-in-law throws out a pile of corn during the first couple weeks of October and year after year my niece bags a P&Y quality buck from a blind. She doesn't hunt any other time of year and has zero clue or care. He is more selective in looking for giants and about every other year it works out for him. His property is open hardwoods, no plots or habitat work, and he doesn't hunt anything else outside of pouring corn out. This all happens within eyesight of his back door.
I've seen it go on like this for years. My brother has run his feeder year round for probably 20yrs. My BIL has poured out corn for probably 10yrs. Not a huge sample size but it's enough to see a pattern and note the factors. Both properties produce big deer and everybody seems to find success, but it's in different ways. I've surmised that running a feeder long term is akin to having a plot, and that it's attractiveness largely relies on environmental factors. Likewise, baiting also relies on environmental factors. If food is otherwise scarce, a bait pile will attract any hungry deer. In my BIL's situation, the land is completely unpressured EXCEPT for while they're pouring bait for deer. My brother's place is hunted from squirrel season until rabbit season ends.