Seating in the Corolla is quite good overall, with plenty of headroom and legroom in front, and even decent space for average-sized adults in the back seat. But front seats are a bit short and spongy; they're not so comfortable for longer trips.
Storage-wise, there's a double glovebox, along with a few cubbies, a console box, and large door pockets, but the trunk is on the small side, even among cars in this class, and has intrusive hinges.
Since the Corolla is quite softly sprung, ride comfort is good on most types of roads, though it can become bouncy on broken freeway surfaces. The one area where the Corolla is a standout, however, is in interior quietness and refinement. There isn't a lot of engine noise, and the powertrain is smooth. The Corolla's cabin is also well-isolated from wind and road noise, and feels up to the standards of a mid-size car in this respect.