"wow factor" meaning in English

{
  "forms": [
    {
      "form": "wow factors",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "wow factor (plural wow factors)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "2012 January 28, The Guardian",
          "text": "The Zaha Hadid-designed Aquatics Centre provides the wow factor for London's Olympics but its legacy is contentious.",
          "type": "quotation"
        },
        {
          "ref": "2015, evo: Supercars, page 9",
          "text": "Today's Nissan GT-R, for example, is a shockingly rapid and capable machine, but it doesn't have the wow factor of a Lamborghini.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "The feature of a situation, product etc. that generates amazement and excitement."
      ],
      "id": "en-wow_factor-en-noun-C6prCoqi",
      "raw_glosses": [
        "(informal) The feature of a situation, product etc. that generates amazement and excitement."
      ],
      "tags": [
        "informal"
      ]
    }
  ],
  "word": "wow factor"
}

{
  "forms": [
    {
      "form": "wow factors",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "wow factor (plural wow factors)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English informal terms",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with quotations",
        "Quotation templates to be cleaned"
      ],
      "examples": [
        {
          "ref": "2012 January 28, The Guardian",
          "text": "The Zaha Hadid-designed Aquatics Centre provides the wow factor for London's Olympics but its legacy is contentious.",
          "type": "quotation"
        },
        {
          "ref": "2015, evo: Supercars, page 9",
          "text": "Today's Nissan GT-R, for example, is a shockingly rapid and capable machine, but it doesn't have the wow factor of a Lamborghini.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "The feature of a situation, product etc. that generates amazement and excitement."
      ],
      "raw_glosses": [
        "(informal) The feature of a situation, product etc. that generates amazement and excitement."
      ],
      "tags": [
        "informal"
      ]
    }
  ],
  "word": "wow factor"
}