TikTok scores 54% satisfaction across 13 verified merchants and agency operators, among the lowest on our panel. The upside reviewers acknowledge is scale: enormous reach, genuine virality potential, and shoppers who are comfortable buying in-app. The Shopify connection handles the mechanical part well — product sync is plug-and-play, orders flow back into Shopify, and there's no cost to install. The dissatisfaction is about results and workflow. Several merchants report conversion close to zero despite meaningful reach, describing an audience that engages but doesn't buy. The algorithm is hard to work with consistently, and merchants in restricted product categories struggle with ad approvals. Registration across TikTok for Business, TikTok Shop and TikTok Ads is confusing, one reviewer was still untangling it eight months in, and most day-to-day work happens in TikTok's own interface rather than Shopify. Analytics are thinner than Meta or Google. The verdict: install it, because it's free and the plumbing works — but validate whether your category converts before committing ad budget or team time.