While Ella's deli might not have some of the best food in town, it does have the electricity bill. Therein lies the real reason you should visit, the explosion of gadgetry, mechanical toys, mouse-trap style novelties, and all around eye candy make Ella's the only restaurant I know of where its permissible to get up and wander around wide-eyed at this little shop of curiosities.
If you have strong impulses towards cold-cuts, potato salad, reubens, and ice cream or a small convoy of children with frequently shifting attention spans Ella's will be perfect.
For those looking for a bit more culinary sophistication or higher quality shy away from the American foods and learn towards the more kosher elements. The chicken in my Caesar salad was actually so stale it was send-back worthy. But for a place with a carousal outside and an interior that's been as constant as bologna fallen behind the stove, Ella's makes for a nice one time excursion of new sights and sounds.