According to an interview with the advertiser, conducted by Jezebel, it's not:
Does it look like it implies an escort service? That's like the second time people have asked that. [Laughs] It's not an escort service.
It's a concierge service—kind of like a high-end Living Social or Groupon, but it's a membership company. So pretty much, you pay a fee and you get exclusive deals with high-end restaurants and events that we throw. We throw events at Trump Tower, at high-end art galleries, cigar lounges, and everything. We have models present at our events. That's why we're called Super Model. We also offer deals at restaurants and travel, shopping. It's like living a luxury lifestyle, just, you know, cheaper.Now watch the ad:
Personally, I don't really care if it is an escort service. I'm more concerned that it's some kind of scam — whether it involves sex or not. Their terms and conditions page really does make it seem like a membership-based "deals" operation. So what is it about the imagery and language used that makes it feel like sex work?