Hi Jessica and welcome back to planDisney.
From what I can see, you are due to arrive at
Walt Disney World, TODAY! It really doesn't get much more exciting than that so, with that in mind, let's get on with answering your question so that the fun can begin!
First of all, congratulations on snagging a dining reservation for
Space 220 Lounge as these are notoriously difficult to get and are often snapped up the very day that they are released.
During my family's last visit to
EPCOT, we, like you, wanted to be able to experience Space 220 but, without having a full table-service meal at the restaurant there. We made a dining reservation for Space 220 Lounge and simply ordered drinks to enjoy whilst we soaked up the truly out-of-this-world atmosphere.
With an 8:10pm dining reservation, I think that you would be pushed to make it to World Showcase in time for the start of
Luminous The Symphony of Us, nighttime spectacular at 9:00pm.
If I were in your situation, here's what I'd do:-
1/ Keep checking the
My Disney Experience App frequently between now and the day/time of your reservation. Cancellations do occur, especially at short notice as other Guests firm up their plans. You never know, you might get lucky and be able to grab an earlier dining reservation, on the day of your planned visit to EPCOT.
2/ Head on over to the restaurant as soon as it opens, or, as soon as you arrive at EPCOT, (whichever is earliest) and ask a Cast Member if there is any possibility of bringing your dining reservation forward at all.
3/ If the above 2 options do not work, I would recommend arriving at the restaurant approximately 30 minutes prior to your dining reservation in the hopes that you will be seated a little before the time of your reservation. Whilst this cannot be guaranteed, Cast Members will do their very best to accommodate any requests made.
If you are seated on, or after 8:10pm, I would suggest maybe just ordering drinks and asking to pay for your drinks as soon as the server brings them over. That way, you will be able to leave the restaurant as soon as you have finished your drinks and make your way over to World Showcase. The quickest way to get there would be to follow the path towards the Odyssey building which will bring you out near Mexico.
The good news is, Jessica, that there honestly isn't a bad place to watch Luminous The Symphony of Us, from. You will have a good view from anywhere around World Showcase Lagoon.
I hope that this information has been of help and will keep my fingers crossed that you're able to enjoy both your dining reservation at Space 220 Lounge and Luminous The Symphony of Us on the day that you have planned to visit EPCOT.
Wishing you a magical trip filled with memories which will last a lifetime!
Emma