The springfield table is pneumatic. it is one post and allows the tabletop to be rotated 360 (limited by its placement and counters, etc that may impinge. the regular tabletop is two poles in two bases that fit into two receptacles on the underside of the table. it will slide back and forth (side to side) on the slider that comes standard, and locks into place for travel and/or stability.
You have to purchase the springfield yourself and either ship to eti or bring it for installation at orientation. its biggest advantage is the ease of lowering/raising it to produce a bed without struggling with poles and the tabletop, and and also the aforementioned rotatability. Disadvantage is the cost and the fact that it makes it somewhat more difficult to access the areas under the bench to do any work on the components that may be there, depending on the model.
if you use the search feature you should be able to find a lot of photos/examples. Also the thread "it's friday, 2017 and beyond will have a lot of pics of various configurations and fabric choices.
My escape is a 2018 17A with selected floor, formica, and fabric. i love that the choice is available. I have the springfield and love it.
--Time and trouble will tame an advanced young woman, but an advanced older woman is uncontrollable by any earthly force. --Dorothy Sayers