It certainly looks like an accurate grade to me. Mostly because of the obverse. The reverse looks really clean though. Granted I have seen MS graded Ike's that had more dings. Some of the dings on this one appear to be more than just bag marks. Apparently the grader agrees.
At first I thought this was the same coin as the one you posted here: http://www.cointalk.com/t217333/ It appears they are two different coins. But, looking at the one in this thread, I'm surprised at that huge rim gash on the obverse between 1 and 2 o'clock. Not sure I see "wear" per se, but PCGS TrueView images are notoriously difficult to "interpret" for grading.
I'm pretty much just whining now, but I don't see six grade points difference between mine and these two. But PCGS did. These Ikes are killing me!
They are tough to grade, i will say almost impossible by photograph alone, that is why i prefer to stick to slabbed examples although it can have its downsides as well.
Unfortunately the slabbed ones are usually a fortune in decent grades. These two (this post and my grade the Ike 10) were about $30 as I recall. Also, after reviewing the PCGS photograde it appears as if the reverse has almost no bearing on the grade - I'm not even sure it was looked at. I present to you the reverse of an AU58 Ike, per PCGS http://www.pcgs.com/photograde/#/Ike/Grades. You have to scroll a bit. Thank you all for the replies. I'm going to go get some cheese for my whine now.
How I look at it: A coin could be a MS-68, but with ONE circulation hit, ONE rub, ONE circulation nick and it's automatically AU-58 at best. It seems this is the case with your coin. There is a pretty nasty rim hit upper right, what looks like a circulation hit behind the head and scratch across the head right above the ear.
Someone's opinion. Not being a edited, but that's what I think. It's only PART of the story though. You have to take everything into account.