Is that necessarily bad? That's up to you.
If you max out this Perk, you will severely limit your choice of weapon to these types of weapons. Use common sense to realize if something is meant to be used with a punch, and you'll probably be right about which Perk it gets boosted by - the damage numbers found in your inventory menu DO reflect this Perk. Jump to a Perk! About Iron Fist: First, to answer what will likely be questioned by many - do you have to truly be unarmed? So that's an important distinction to be made. If I've typo'd on a Perk ID or listed the wrong one there are many that come up you can use the same Cheats you'd use to look up an item id if on PC to try and find the Perk ID yourself. You can go to the individual StrengthPerceptionEnduranceCharismaIntelligenceAgilityand Luck pages to learn how the Stats themselves affect your character, as well as the Bobblehead Location for that Stat. Having written guides to all 7 Stats in Fallout 4 and all of their Perks, I thought players might appreciate having all of them listed in one place as a reference.