ASFAIK table assignemt location will not change because of using a mobility aid. The might make a bit more space around the table and sometimes pre move away a seat to accomodate a wheelchair but that's about it from what I've heard and own experience also. Actually did the party with a friend of mine who's in a manual chair, I use a powerchair. We had a table waiting for us with no seats (got one delivered -and fast- though for bot being more obvious that the table is being used to stop some folks from wanting to kidnap it -yep.........- and some storage space). We were front row center, but got the first reservation which has a lot more to due with location than wheelchair itself. We actually had CM's on insisting bringing us whatever desert we desired after having a first look ourselves, because it was pretty busy at the buffet and they did not want us to have any hassle. Also some of the displays were difficult to reach from a chair (tip; prepare by bringing along a loved one or ask for help), let alone when you should not reach like I should. Well ok, turning it into a TS is no problem for us. Visionwise? Many have posted that sitting down you have a nice one, as long as nobody stands up in front of you. In those instances or if desired you can move up to the railing. There should be more then enough space for all to see unless running into some rude folks. Like we did. Some guy wanting to take pics and thinking it is ok for him to do so by setting up all kinds of equipment taking up a huge part of the railing and view, "accidently" pushing his stuff into people to basically bully himself into place etc. Did not appreciate him one bit, more so since we had the prime location, were there first by the railing and he literally pushed, shuved and stacked stuff on the railing in front of us. Sheez, dude, you can easily take great pics by having an undisturbed view by standing behind my friend and here sitting so low. With my powerchair being a bit higher up, I ended up making space for a little boy to stand in front of me, but the scene got a bit ugly running upto the fireworks to begin. CM's didn't notice at first, but guests couldn't not notice -all were feeling the effects of it- and were very clear about him needing to basically......... well........ act normal. No agression or anything, was al said in a friendly way but very firm and a type of "whole crowd stands as one, so better do it" way. By then CM's did notice and also repeated. Space was made -grumbling along- and all had a superb viewing spot right at the railing. Except one. Should've known to "run" when photodude minus a whole lot of stuff standing next to me was asking for problems. Sure enough, his pics were so Holy the dude somehow decided it was best for the Holy pics to move his half body and camera in front of me, into my personal space. Had it by then, got almost livid when he did it in such a rude way he full on full power knocked into my joystick. Lukcy I ALWAYS turn it off when standing still at WDW, knowing how some kids find it too difficult to resist touching it, bags flying around in crowds that can knock into it etc. I moved away from the railing, up to about 2nd tier, put my chair lift into it's highest position and enjoyed a perfect view over the rest of the guests head. Let's suffice to say that guy got an unbelievable amount of pieces of minds from other guests after the fireworks when they started to notice I was back there and figuring out why. Same with CM's, who were about to directly do something as I moved back but I told them to not to as I would get a perfect view once up high enough and as long as nobody else gets the Holy-picture-treatment it would be fine with me to wait, enjoy the show, have a bit of a break before talking to him and back to work. This was a huge exception though when it comes to how-can-the-party-be-complicated-when-using-a-wheelchair- so don't let it worry you. There are plenty of great viewing spots. When in a manual chair or power without lift and doing the party for the fireworks, I would advice moving up to the railing in time enough but that is about it and you should be fine.