My son celebrated his 20th birthday at Mustang. A huge party of 70 people that lasted until the early hours and was a resounding success! The bartender and security guard were very professional and top-notch (no incidents, no one got sick 👍). The manager was very friendly, available, and accommodating. The establishment has high-quality lighting and sound equipment and a secure courtyard, which is a real plus. Furthermore, the venue doesn't impose its own DJ, and you can freely bring your own bottles without a corkage fee, which is very cool. Excellent value for money for the Paris region.
The only "requirements" are to sweep up before leaving and respect the safety instructions. Just normal, really 😀!