Generally speaking check-in at Dan hotels is 1500. The only time you can check in early is when the rooms are basically unused from the night before and ready early. I would call back, ask again AND ask what time check out is. THAT usually is noon and you can't expect them to have rooms ready BEFORE they are empty
IN terms of the hotel itself. The property is the one that had previously been called the Renaissance. While I haven't been there personally I know my driver in Israel goes yearly with his immediate family. They ( he and his wife) love that they basically just let their kids loose! He reports it is really nice, loads of stuff to do and very busy. With pools etc. etc. I would imagine that the weekend is full of kids. If you are going with only your new wife then I would think mid week would be much better than the weekend.
Enjoy