The Whirlpool is a standard 20" stackable washer/dryer that should fit in any apartment.
The Whirlpool LTG5423D has a standard back-mounted gas hookup, which is easy to connect.
The Whirlpool LTG5423D is difficult to move, owing to its unibody construction which makes it sturdy.
The Whirlpool LTG5423D does need a natural gas hookup, which should be found in any modern apartment.
The Whirlpool LTG5423D would look a bit out of place in a dining room and need a gas outlet as well.