Do modular and boneless sofas hold their shape over time?

This is the most common complaint we saw. Verified-purchase and community reviewers report cushions that flatten, slide apart between sections, or need regular fluffing, with one Amazon customer review on a high-volume model bluntly calling it 'cheap, not a long lasting couch.' Firmer-foam boneless models drew fewer sag complaints than feather or down-filled cloud styles.