---
title: "Reviews — e17 ソケット - Flapen"
canonical_url: "https://flapen.com/research/jp/diy/e17/reviews"
last_updated: "2026-08-08T10:13:19.840Z"
locale: en
meta:
  description: "Niche score 56/100 · ¥937K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
  "og:description": "Niche score 56/100 · ¥937K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
  "og:title": "Reviews — e17 ソケット - Flapen"
---

# **e17 ソケット**

**Worth a look**

Shows low returns (0.7%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Market size 77Growth 21Conversion 35Competition 74Returns 97Price range 0Avg price 0Brand share 35Review moat 90Quality gap 96

**Returns**

**Incredible****0.7%**

return rate — above 5% kills the launch gate

**Quality gap**

**Incredible****3.9★**

avg incumbent rating — lower means beatable quality

**Review moat**

**Great****195.83**

avg incumbent reviews — the moat a new listing must climb

**Market size**

**Great****¥937K**

¥937K/yr · 35K searches

**Competition**

**Good****40%**

top-5 click share — leaders hold, buyers still browse

**Conversion**

**Okay****2.8%**

search→purchase rate — share of searches ending in a sale

**Brand share**

**Okay****84%**

top-5 brand share — brands hold most of the demand

**Growth**

**Bad****-8.7%**

90-day search growth — must beat 0% to launch

**Avg price**

**Bad****¥976.05**

avg listing price — sweet spot $15–$100

**Price range**

**Bad****¥253.49–¥3798.33**

cheapest to priciest tracked listing — scored on the share inside $15–$100

**Signals**[** Quality Gap**](https://flapen.com/research/niches?market=jp&signal=quality_gap "Avg rating < 4.0") [** High Price**](https://flapen.com/research/niches?market=jp&signal=high_price "Avg price > $50")

## Reviews