The plan covers 21 countries: Bahrain, Iraq, Israel, Jordan, Kuwait, Oman, Qatar, Saudi Arabia, the United Arab Emirates, Turkey, Egypt, Morocco, Tunisia, Algeria, Pakistan, Armenia, Azerbaijan, Kazakhstan, Kyrgyzstan, Tajikistan and Uzbekistan. Read that list again, because half of it is not what most people mean by the Middle East.
The absences matter just as much, and nobody prints them. Lebanon is not on this plan. Neither is Iran, Syria or Yemen. If one of those is on your itinerary, this plan does nothing for you there. Check the 21 against your booking, stop by stop, before you pay for anything.
The wins sit at the edges of that list. A trip that runs Istanbul, then Dubai, then Cairo sits inside one plan. So does Amman to Tel Aviv. So does a Silk Road run through Uzbekistan and Kyrgyzstan. Most people buying a Gulf eSIM have no idea North Africa and Central Asia came in the same bundle.