For machine quilting, I would highly recommend gearing the extension table for whatever machine you choose.
When I first started quilting, I was sewing on an Elna Lotus, so named because it had flaps that folded down in lieu of a case. When I used a walking foot on that machine, I would sew for a while, then literally have to pull both the quilt and the machine back towards me.
For my next machine, I also got a cabinet so the machine was flush with the surface. Even with a small, i. e., standard, throat space, that made quilting so much better.