You get the loveliest travel guide if you manage to get Shaadi, in saying that Jerash is lovely, you will get a guide who expects a tip (as do most people in Jordan) but Amman, not much to see and glad we left it to the last day as we were a tad exhausted by that stage. Shaadi was accoomodating of our request to see the experience the real food of Jordan, went to a lovely restaurant serving local food and eating with the locals.
If you manage to get Shaadi you will have a great day, we were also lucky with the weather that day but unfortunately Red sea was too choppy and windy to fully experience the floating experience. Also note that this is a local beach that they take you too, you will be surrounded by conservative locals, not the time to break out your bikini! The beach is not that great, the Israel side of the Red Sea is much prettier and do not expect to get free mud, you have to buy it! Madaba and Mount Nebo are nice to view the sights of Jordan with a Christian background but that's about it