The Pera location hasn't opened yet. I held reservations for its planned opening weekend and just received an email that they postpone the opening until June 17. They offered to rebook me at the Bosphorous location, but the whole thing was rather messy, because I had a premium reward at Pera, but they refused to secure a similar deal at Bosphorous (business room, breakfast, etc). So, a pretty bad first impression.

I was excited to try the Pera property because of its better (less out of the way IMO) location. Plus, it looks very nice, rooms, view, etc. It's a welcome addition to the program, and I look forward to the first reports.