There are some horrible things in GT4.

The pace car is one of them.  God dammit, give the Technicolor line we had in GT3.  At least the line doesn't pussy out when it comes to cornering.  And then there's the rally penalty.  Sorry Polyphony, but it makes no sense at all when the opponent bumps me with his bumper, which causes me to knock the wall, which causes me to get a penalty, while the opponent flies by.  In Jack's words, "I want to punch Kazunori Yamauchi in the fucking face."
 
The photo shooting, and Photo Travel, modes, however, are not some of those horrible things.  Far from it.  The Gran Turismo series, and the ability of its Replay mode to make any car or driver look good, is legendary.  Now, with photo mode, you're able to produce amazing, high-quality pictures from those replays.  Just take a look at some of my favorites:
 
My Nismo 400R running around Laguna Seca.
 
#1 #2
 
The sexy 2001 Concept NSX-R.
 
#1 #2 #3
 
The legendary RS200 doing laps around the Grand Canyon.
 
#1 #2 #3

A couple from the collection of Atticus.
 
#1 #2

UPDATE Break got in the RS200 and took a few laps around Seattle.

#1 #2 #3
 
The beauty of the system is flexibility.  For every time you stop the replay to create a picture, GT4 allows you to use 64 different camera angles, all of which can pan and zoom, as if the camera were on a tripod.  It even has provisions for advanced photographers, like white balance, saturation, exposure, shutter speed, and all kinds of other stuff I don't understand.  But you don't have to know what all that means to turn out great photos.  All you have to have is an eye for the striking or dramatic.
 
If only Fable had come out with this feature, the world might be a better place.