# Game Changing Performance > Gym offers a welcoming, non-intimidating culture with friendly, supportive people of all ages. Classes run under an hour and provide challenging, tailored workouts with expert coaching. Nutrition guidance complements fitness programs to support overall health and progress. Source: https://www.atly.com/location/GameChangingPerformance - Address: 300 Washington Blvd, Mundelein, Illinois, United States - Phone: +18475651116 - Website: https://gamechangingperformance.fit/ ## What it is good for - Gyms — 10/10 - Weight Lifting Gym — 7.9/10 ## What people say - "This weight lifting gym has a great, welcoming environment." - "The people at this gym are so friendly and welcoming." ## Good to know - Classes last under an hour and offer varied, challenging workouts. - The gym provides a supportive environment for all age groups. - Coaches tailor workouts based on individual needs and goals. - Nutrition guidance is included to support overall fitness progress. - The owners are knowledgeable and have designed effective programs. ## 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.