Sisko is a verified, established (25+ years) HVAC and plumbing service company operating in Trzcianka and Piła, Poland. While the business demonstrates verifiable longevity and local utility (installing heat pumps, ventilation, etc.), the submission suffers from poor quality and hyperbolic claims (e.g., audience reach 'everyone', traction 'most people'). As a traditional service business without scalable technology or digital innovation, it scores low on the Proof of Usefulness framework designed for high-growth tech projects, despite being a legitimate SME.
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