car diffuser
Worth a lookShows beatable incumbent ratings (3.8★), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Quality gap
Incredible3.8★avg incumbent rating — lower means beatable quality
Returns
Incredible0.7%return rate — above 5% kills the launch gate
Avg price
Great£19.04avg listing price — sweet spot $15–$100
Price range
Great£5.59–£79.87cheapest to priciest tracked listing — scored on the share inside $15–$100
Brand share
Great52%top-5 brand share — no brand owns this niche
Review moat
Great478.19avg incumbent reviews — the moat a new listing must climb
Competition
Good45%top-5 click share — leaders hold, buyers still browse
Market size
Okay£133K£133K/yr · 334K searches
Conversion
Okay2.1%search→purchase rate — share of searches ending in a sale
Growth
Bad-21.1%90-day search growth — must beat 0% to launch