Human Clerics get Wisdom and Charisma enhancements. The feat is a tremendous boon. The skill point lets you take Concentration and Diplomacy wiithout spending anything on Intelligence.
Human Rogues get another skill boost, another damage boost, a saving throw boost and an attack boost all in one enhancement. The feat AND the skill point, again, are a huge benefit.
Human Bards get the same use out of Versatility that Rogues get. My Warchanter loves the damage and attack boosts when he Power Attacks. Bards are also VERY VERY VERY starved for feats and having such a great skill list means the extra skill point gets put to use.
I have 6 characters I play a lot now. Three are humans, two are warforged and one is drow (and I really wish she were a 32-point elf instead).