Marla Gibbs stole the scenes

Do you mean 227? She was a bit self-righteous but cool.

Sometimes she went overboard in my opinion.

Both Gibbs and Hemsley played well off each other. I loved their exchanged 1-liners! I would say the difference between The Jeffersons and 227 was that while Hemsley matched Gibbs beat for beat, on 227, Gibbs got overshadowed by Jackee.