"Your AutoVac idea is creative and addresses a real urban problem in a fresh way. The concept of turning daily commuters into contributors is powerful. However, you might want to think more about practical aspects like how the device will handle…"

"Nice concept overall, but it may be hard to implement in smaller libraries. If there was a portable version that folds flat when not in use, it would be more practical."

"Such a creative idea! Turning routines into a game is something everyone would enjoy. Just think about how to keep users excited after the first few weeks."

"The 10–15% commission and premium profiles strike a good balance for monetization without alienating users."

"Your AutoVac idea is creative and addresses a real urban problem in a fresh way. The concept of turning daily commuters into contributors is powerful. However, you might want to think more about practical aspects like how the device will handle…"