We watched Spectro from outside of LTT last June. It was a great spot, but there were quite a few people there (as there were everywhere). There was something we could sit on, though...I think a low wall of some sort.
We're going Easter Week this year and I just made a PS at LTT for Friday night at 6:45! We have the same plan....eat and step outside to watch the parade. It looked so inviting last year as we sat waiting for the parade. I just called today for a PS on 4/1 and I had my choice of any time I wanted. So, while MK is expected to be REALLY busy that week, it looks like it's going to slow down Friday night. (perhaps)