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stirling engine
Worth a lookShows a thin review moat (50 avg reviews), but weak search conversion (0.4%) keeps it on the watch list.
Review moat
Incredible49.74avg incumbent reviews — the moat a new listing must climb
Brand share
Incredible39%top-5 brand share — no brand owns this niche
Returns
Great1.2%return rate — above 5% kills the launch gate
Competition
Great36%top-5 click share — an open shelf
Quality gap
Great4.3★avg incumbent rating — lower means beatable quality
Avg price
Good£108.62avg listing price — sweet spot $15–$100
Market size
Bad£59K£59K/yr · 126K searches
Growth
Bad-21.0%90-day search growth — must beat 0% to launch
Price range
Bad£15.41–£791.83cheapest to priciest tracked listing — scored on the share inside $15–$100
Conversion
Bad0.4%search→purchase rate — share of searches ending in a sale