A side-by-side splits the cabinet into two full-height columns, fridge on one side and freezer on the other, so everything sits at eye level and nothing is buried in a bottom drawer. Add through-door water and ice on most models and you have the format's real daily appeal: you stop bending, and you stop opening the door for a glass of water.
The limitation is width, and it catches out almost everyone upgrading from a double door. Each column is only about 40 cm across. A birthday cake box, a large thali tray, a party platter or half a watermelon will not fit, and no amount of clever shelf arrangement fixes it. If what you store is bulky rather than numerous, a French door gives you the full cabinet width for fresh food and is the better choice at the same money.
Budget for the running cost and the space. These units draw 300-350 units a year — roughly ₹2,400 to ₹2,800, about ₹1,100 more than a 272 L double door. And a 910 mm cabinet needs about 1,000 mm of gap for airflow plus roughly 1,300 mm of clear floor for the doors to open far enough that the drawers pull out. Measure the delivery route too: a 716-738 mm deep cabinet will not pass a 700 mm doorway.