I did try the PH Vienna for one night and ended up in the Ambassador suite -- holy cr@p . I moved ~200 yards down the road to the Rad Blu Style Vienna. Wow ---- what a difference. As a gold I was told that with the hotel being "booked" that I was stuck in a standard room with 2 single beds (not my booked bed choice). Upgrades aren't guaranteed but it really was a below standard room -- especially when compared to the "very generous" with upgrades comments above. Staff was quite unhelpful too in my one interaction outside of check in/out (one interaction bc of concierge issue). I asked about transportation to the airport and was told that the cost of the metro and the express train to the airport would be similar (not really though) to that of a taxi and that I should take a taxi. I asked about my preferred option, via bus from near Volkstheater (10 min walk from the hotel), and the bellhop said he had no idea what I was talking about. I ended up talking to the bellhop because 1) there was no concierge, and 2) the front desk agent I was talking to walked away mid-conversation after telling me to just take a taxi.

Other nits:
The safe seemed to be on top of a heater of some sort, or the fridge was producing steel mill type heat (?) An exaggeration of course but my camera should not have been that warm to the touch after a night in a safe.

No concierge at all over my 2 nights. This seems to be a Carlson issue more than a VIE Style issue but in a tourist city, not having a concierge a PITA.

First Club Carlson hotel not on my personal recommended/would visit again list.

Cheers