Does anyone have any experience on how long it would take Adwords to reflect changes to your Landing Page/Website in your keyword QS?
Sorry, to clarify, if I make some changes to the website, with the same Domain name, and then delete the ad text and write new ad text, it will be evaluated straight away?
yes... but any time you make a landing page change you should change the landing page name as well so the history of the old landing page does not affect the new one example www.myurl.com/landingpage1.html then change something www.myurl.com/landingpage2.html