On another board I read that they got rid of those trees now and the view is unobstructed
They did get rid of the trees and the view is much improved, although I wouldn't say unobstructed. You are set quite low down and while it is true that the fireworks are above you, there are railings, signs and all kinds of other features from the surrounding areas of the park itself, including lamp posts and lights, which are in the way, depending where you sit. I wouldn't sit there if you were wanting to take photos as the odds of getting a decent shot are pretty close to nil.
With that said, we do always book it, but we don't only watch Wishes once. It is lovely to have an evening where we can just sit and relax without the crowds and enjoy it. However if it were my only night to watch it, I would rather sit and wait elsewhere for a good view where you get more of the atmosphere and a much better view.
Epcot's location is on the Morocco boat landing and you do get a good view from there. As someone else said, it is hit and miss as to how busy it gets in these locations. We have been there and the viewing area has been jam packed - and then last year the night we went we were the only ones there - and I mean not another soul in the roped off area. It was like real VIP viewing
Just a point to keep in mind if you happen to turn up for your booked viewing and realise you left your vouchers behind (we have managed to do this at MK every year

) as long as you have your KTTW cards with you as your ID, they have a list with your names on and will let you in on that
