Well I don't know about perfect. Remember when they hyped it up as "the best sightlines in baseball"? They really didn't think it through when those sightlines were so easily obstructed. Also, it's great that the stadium is on the Anacostia river, but it's closed off, so you can't even see or feel the (breeze) river. And, it's a cheap rip-off of the Philles stadium too! I hate to admit it, but Camden yards and PNC Park are much nicer baseball ballparks.
How are sightlines "easily obstructed?"
Camden Yards is overrated. Closed concourses, seats pointed the wrong way, no cupholders, etc. Never been to PNC Park and never will.
EDIT: Sorry, yes, PNC Park is awesome. I was thinking you were talking about the Citizens Bank.