Used toad, I found that it is much better than the PL / SQL Developer function. It is important to provide online help, which is much more, because Oracle's help is not good, so the help of PL / SQL Developer is not (her Lazy, only the reference is available, or toad is good, you have a Help, and it is more functional. It seems that the memory process is more comfortable!
Of course, Toad has many other features, "I have said it!"