What challenges do consumers face with online purchases, and how would you solve them?

"The process was more rigorous than anything I’d done at other big tech companies, but the recruiter was accurate and helpful in guiding preparation, which I really appreciated. A few things caught me off guard: one round had unexpected case-style questions that weren’t mentioned beforehand. Overall, the structure was fair, and the interviewers were professional, though the pacing felt a bit rushed at times."