Avantgarde Hotel Levent - Boutique Class. The 84 air-conditioned guestrooms at Avantgarde Hotel Levent - Boutique Class include iPod docking stations and laptop-compatible safes. Beds have down comforters and premium bedding. Pillow menus are available. Guests can use the in-room complimentary wireless high-speed Internet access. This 5-star hotel features business amenities including a 24-hour business center, small meeting rooms, and limo/town car service. Dining options at the hotel include 2 restaurants along with a coffee shop/cafe and a bar/lounge.