Israel did very well:
--> It eliminated the de facto head of Hamas’s military wing,
--> it destroyed a large portion of Gaza’s long-range rockets as well as weapon storage facilities and launching pads,
--> and it demonstrated the effectiveness of the Iron Dome, all with minimal casualties.
Aware that time was in Hamas' favour, Israel took concrete steps to bolster the credibility of a land operation, including the drafting of tens of thousands of reservists. These were mostly intended as a warning upon which Israel preferred not to act, -- BUT had a rocket struck a highly sensitive target in Israel causing mass casualties, Netanyahu could have found himself with little choice...
Public pressure for a land incursion gradually increased, not least due to the tens of thousands of reservists camped out near the Gaza Strip, away from their families, and repeatedly telling journalists that they were prepared to enter...
Also: the Iron Dome’s success could lessen the threat posed by Hizbollah’s missile arsenal, viewed as an Iranian deterrent.
The system is EXTREMELY COSTLY however: $35,000-$50,000 for every intercepted rocket – and to be fully effective its coverage would need to be significantly expanded...