Sure, when you set the bar very, very, very low (George W. Bush), most non-sociopaths with IQ's higher than 75 would be doing "OK."
But the issue I was addressing was if there was anything he could have done better. Considering all the innocent people who have had their lives destroyed by Obama's policies, I think he could have done much, much better.
Regarding the "Obameter," I would imagine if you're one of the unprecedented number of whistle-blowers he's prosecuted, or if you're one of the medicinal marijuana growers following your state's laws who are in prison, or if you're an unimportant peasant in Yemen or Afghanistan or Pakistan or Somalia who's either been blown to bloody pieces by a drone or had a young son or daughter blown to bloody pieces by a drone, you might be unimpressed by the fact that he's only broken 22% of his promises.
Actually, I'd be thoroughly unimpressed if anyone I knew or worked with broke 22% of all the promises they made. But this is politics, so I understand we're not dealing with actual, real-life notions of ethics or morality.