Good location, very good condition
My stay at the Opera Hotel & Spa was very pleasant: I was originally booked into a room with a shower only but on arrival, I requested a room with a bath tub, which I got without any issues. The room was spacious, nicely decorated and appeared to be newly renovated (as was the whole hotel - I walked into many other 4 start hotels and saw how old and tired they were). The spa was a nice extra as well, esp. during the time in late November that I was there when it was very cold outside. (It was a bit odd that you are only allowed to use it for 1.5 hrs per day at no extra charge, and in only 1 session even though the hotel was about 40% occupied during the 5 weekdays that I was there; having said that, some other spa hotels in Riga charge another Eur 20 for using the spa even if you are a guest there). Some guests commented about the ventilation system - my room was fine, it was neither too warm or too cold.