I really like having rolling work tables.
the ones I have now are nice but the bigger the better, I think that should be a high priority for the floor plan of any shop with some walking room. By using a lower toolbox unit it also keeps parts and tools handy!

I make a 2by4 foot flat top on it, then lay a ceiling tile down. I don't do that much building /framing on them as they are smallish..But its an incredible route to go when finishing up. You can lay foam pads and sandbags down to protect parts. Or even use foam cradles on it. The ability to reposition the table for the best access or lighting is a benefit also.