Is f4 a good move here?
[Title ""] [SetUp "1"] [FEN "r2qk1nr/pbp3pp/1p2p/4b/4P/2N/PPP2PPP/R1BQ1RK1 w - - 0 1"] 1. f4
On the one hand, many times you would move like this way to attack some pieces - sometimes to f3 or to f4. On the other hand, I feel that I leave open my king.
What are the disadvantages/advantages of this move?