Press really is not that bad a player at all.
If you judge him based on his stats on a standard box score, then sure he's not that impressive.
But pretty is a Marquis Daniels type, in that he does a lot of the little things that don't show up on the box score. He hustles hard, he plays tough pressure defense, he has very good court vision and is a skilled passer and ball handler.
Correct, he does not shoot or score especially well. True he's a little undersized, but not chronically so (at 5'11" 1/2 he's about the same height as Kyle Lowry).
He's basically the only traditional PG on this team after Rondo, so I really don't mind him at all. He almost always does good things when he gets on the court and I tend to find the teams plays better when he's on the court much of the time.