The studios are about 360 sq ft with one, small bathroom. It has a mini kitchen area with a small frig, microwave, sink and coffee maker. It comes with paper plates and plastic utensils. Four in a studio is possible and common but not a situation of true comfort.
The Kidani 1BR is huge, about 810 sq ft.. The master bedroom with a king connects to a large master bath that has a shower separate from the large, jacuzzi tub. The iiving room has a pull-out queen couch, and a large twin sized pull-out sleeper chair, There is a full kitchen area with dishwasher, large frig, stove, coffee maker, microwave, sink, real dishes and utensils. There is a second full bathroom with combined tub and shower between the kitchen and front door area. There is also a washer/dryer, two TVs (bedroom and living room) You also get one, long balcony that runs the length of the bedroom and living room.
If you want room comfort and the amenities of being at home do the 1BR. If the four guests don't mind being cramped together and just want a room to try to sleep in and no one snores loudly, do the studio.