cs ヤスリ
Worth a lookShows a thin review moat (25 avg reviews), but brand-locked demand (top 5 brands take 100% of clicks) keeps it on the watch list.
Review moat
Incredible24.8avg incumbent reviews — the moat a new listing must climb
Returns
Incredible0.3%return rate — above 5% kills the launch gate
Conversion
Great10.4%search→purchase rate — share of searches ending in a sale
Market size
Great¥1.1M¥1.1M/yr · 11K searches
Quality gap
Great4.3★avg incumbent rating — lower means beatable quality
Growth
Okay+10.0%90-day search growth — must beat 0% to launch
Competition
Okay65%top-5 click share — leaders hold, buyers still browse
Brand share
Bad100%top-5 brand share — brand-locked demand
Avg price
Bad¥973.57avg listing price — sweet spot $15–$100
Price range
Bad¥324.71–¥2858.39cheapest to priciest tracked listing — scored on the share inside $15–$100