-87 was feared during the early part of WWII. It was a good dive bomber and was accurate. Some JU
-87s had sirens on the wheel struts, that would cause panic on the ground.
They were very ruggered airplanes, able to operate at forward primitive airfields.
But, as the war went on, the Stuka became very ineffective. It had a very short range, and a limited bomb load (IIRC, only a 100kg [220lb] bomb load), and was not very manuverable, thus was easily caught by fighters. They were used effectively in Poland, France, the "Low Countries", and the Eastern Front in the USSR
. But, they were almost useless in North Africa, the Battle of Britian, and the Norway areas.
They did have a limited anti-ship role, that was effective against the RN
warships at Dunkirk.
The dive bombers of the USN
and the IJN were much more effective.