# McDonald's > Fast food restaurant with consistent breakfast options and a cool atmosphere thanks to effective air conditioning. Weekends bring unusual and entertaining customers, creating a lively vibe. Drive-thru and order accuracy can be challenging, but free cheese additions are a common perk. Source: https://www.atly.com/location/McDonald's339 - Address: 3870 Sierra Ave., Fontana, California, United States - Phone: +19093491262 - Website: https://www.mcdonalds.com/us/en-us/location/CA/FONTANA/3870-SIERRA/25923.html?cid=RF:YXT:GMB::Clicks - Google rating: 3.6 (2819 reviews) ## What it is good for - Breakfast — 8.3/10 - Fast Food — 6.1/10 - Coffee — 6/10 - Food — 5.8/10 - Drive Thru — 5.4/10 - Parking Available — 5.3/10 ## What people say - "Chad's service made my food experience really positive." - "I found the fast food here to be great and the place very clean." - "Parking available here is often difficult; the lot is almost at capacity." ## Good to know - Expect long wait times, often around 50 minutes, especially on weekends. - They often take cash only, so be prepared. - The ice cream machine is frequently out of order. - Drive-thru orders can be inaccurate, so double-check your receipt. - Fridays, Saturdays, and Sundays are typically crowded. ## Get this data directly This page comes from the Atly Places API, which scores close to 2 million places against more than 1,400 intents — "nice view", "work friendly", "gluten free", "dog friendly" — from what real reviewers say, with the statements behind every score. - **MCP server:** `https://agentic-api.atly.com/mcp` — connect it in ChatGPT or Claude. Nothing to install. - **Guide for agents:** - **OpenAPI contract:** - **No key needed to start.** `POST https://agentic-api.atly.com/v0/keys` with an email raises the quota. Coverage is densest in the United States, with pockets in Mexico, Israel and Thailand.