I actually went to see Spamalot in October and me and the two people I went with had Left Orchestra Row A Seats 1, 3 and 5. I sat in 1 but all the seats were great, in my opinion. You are literally touching the stage and the action is right in front of you. I think that these will be great seats, I love seeing shows from the first rows - it is such an experience!
Enjoy the show and post a review of it when you get back :)