diff --git a/.env.example b/.env.example
index 59b4c30..63619af 100644
--- a/.env.example
+++ b/.env.example
@@ -8,7 +8,7 @@ MATRIX_DEALS_ROOM_ID=!roomid:example.com
 ITAD_API_KEY=
 
 # Deal filtering
-MIN_DEAL_RATING=80
+MIN_DEAL_RATING=8.0
 MIN_DISCOUNT_PERCENT=50
 MAX_PRICE_USD=20
 
diff --git a/README.md b/README.md
index eb50c8d..567f7e2 100644
--- a/README.md
+++ b/README.md
@@ -60,7 +60,7 @@ All configuration is via environment variables (see `.env.example`):
 | `MATRIX_BOT_ACCESS_TOKEN` | Yes | — | Bot's access token |
 | `MATRIX_DEALS_ROOM_ID` | Yes | — | Room ID to post deals in |
 | `ITAD_API_KEY` | No | — | IsThereAnyDeal API key for historical low detection |
-| `MIN_DEAL_RATING` | No | 80 | Minimum CheapShark deal rating (0-100) |
+| `MIN_DEAL_RATING` | No | 8.0 | Minimum CheapShark deal rating (0-10) |
 | `MIN_DISCOUNT_PERCENT` | No | 50 | Minimum discount percentage |
 | `MAX_PRICE_USD` | No | 20 | Maximum sale price in USD |
 | `DATABASE_PATH` | No | deals.db | Path to SQLite database file |
diff --git a/gaming_deals_bot/__main__.py b/gaming_deals_bot/__main__.py
index c6dd4e4..93c6525 100644
--- a/gaming_deals_bot/__main__.py
+++ b/gaming_deals_bot/__main__.py
@@ -13,17 +13,22 @@ from .config import Config
 from .preflight import run_preflight
 
 
-def setup_logging():
+def setup_logging(*, debug: bool = False):
     logging.basicConfig(
-        level=logging.INFO,
+        level=logging.DEBUG if debug else logging.INFO,
         format="%(asctime)s [%(levelname)s] %(name)s: %(message)s",
         stream=sys.stdout,
     )
+    if not debug:
+        # Keep noisy third-party loggers quiet even in debug mode
+        logging.getLogger("httpx").setLevel(logging.WARNING)
+        logging.getLogger("httpcore").setLevel(logging.WARNING)
 
 
 async def main():
     load_dotenv()
-    setup_logging()
+    debug_mode = "--debug" in sys.argv
+    setup_logging(debug=debug_mode)
     logger = logging.getLogger("gaming_deals_bot")
 
     check_mode = "--check" in sys.argv
diff --git a/gaming_deals_bot/cheapshark.py b/gaming_deals_bot/cheapshark.py
index a60e983..4062cb3 100644
--- a/gaming_deals_bot/cheapshark.py
+++ b/gaming_deals_bot/cheapshark.py
@@ -68,14 +68,21 @@ async def fetch_deals(
         logger.error("CheapShark API error: %s", exc)
         return []
 
+    logger.info(
+        "CheapShark returned %d raw deals (before filtering)", len(raw_deals),
+    )
+
     deals = []
     for d in raw_deals:
         savings = float(d.get("savings", 0))
         rating = float(d.get("dealRating", 0))
+        title = d.get("title", "?")
 
         if savings < min_discount:
+            logger.debug("Filtered out %s: savings %.1f%% < %.1f%%", title, savings, min_discount)
             continue
-        if rating * 10 < min_rating:  # dealRating is 0-10, config is 0-100
+        if rating < min_rating:
+            logger.debug("Filtered out %s: rating %.1f < %.1f", title, rating, min_rating)
             continue
 
         steam_app_id = d.get("steamAppID") or None
diff --git a/gaming_deals_bot/config.py b/gaming_deals_bot/config.py
index 1db6d35..4c25a9e 100644
--- a/gaming_deals_bot/config.py
+++ b/gaming_deals_bot/config.py
@@ -15,7 +15,7 @@ class Config:
         self.itad_api_key = os.environ.get("ITAD_API_KEY", "")
 
         # Deal filtering
-        self.min_deal_rating = int(os.environ.get("MIN_DEAL_RATING", "80"))
+        self.min_deal_rating = float(os.environ.get("MIN_DEAL_RATING", "8.0"))
         self.min_discount_percent = int(os.environ.get("MIN_DISCOUNT_PERCENT", "50"))
         self.max_price_usd = float(os.environ.get("MAX_PRICE_USD", "20"))