I just applied for an e-visa for a trip to Jeddah in February. It was a bit of a hassle to re-size a photo to upload onto the website that fit the requirements (200 X 200 px; less than 100Kb - I used a photo of my passport photo taken by my iphone that I had cropped), but once that was successfully done the rest of the online process was very straightforward. The approved e-visa was sent as a PDF attachment to my email within just a minute or two after having completed the application. Super easy! The PDF clearly states 1-year validity, multiple entry and stays of up to 90 days.