I go at least once or twice annually and will also be there on the 16th. You can generally get pretty affordable tickets on Stub Hub. Last year I got some field level behind home plate to the third base side for like $50-$60 each. I got ones in the first row in RF (10 seats down from Britton's HR) for about $30 each. This year I purchased some in the upper deck, first base side for $14 each (it's where my Dad likes to sit and where we had tickets at Memorial way back when).
The stadium itself is pretty nondescript. It's too big because it was built for the Olympics and it's pretty damn hot for day games. Those seats in RF were ridiculously hot, but since the 16th is a night game, you should be fine. I suggest going to the Chop House for a few beers early, but other than that there's nothing special.
If you're driving, I suggest that you go ahead and pay for prepaid parking. It's cheaper (only $10 + fees), you won't have to search around, and you won't have to park in the projects. I just got a ticket for the Blue Lot.