I got the Janome table thrown in along with my purchase of the 6600. The table is great ... nice and solid, no bounce, and the machine sits into it nicely. Just enough workspace to the left to be able to make it a nice work station. I do not sew against a wall, so anything that you are sewing would fall off the back edge, as there is not much space behind the machine. To solve this problem, I have another table butted up at the back, that prevents the drag, when what you are working on, falls to the floor.
The drawer is nice ... but not very big! You'll still want more storage at your machine, I'm sure.
I don't know anything about the Gidget table.