The Park Inn by Radisson is located right on Azadliq Avenue and has one of the premier pieces of real estate in downtown Baku, opposite a mall and the waterfront boulevard. It was one of the first international hotels in Baku; now the Hilton, JW Marriott and the Hyatt have joined (besides many more).
Check-in was very friendly at 3.30AM (our flight from Tbilisi on Azerbaijan Airlines only got in at 2.45AM). I had made several bookings and the agents did their best to disentangle them correctly. The hotel usually charges a half-day room rate for a 5AM check-in; it was 3.30AM and I felt we all needed sleep urgently. Fortunately, the front desk agents approved that at the same price and then we were on our way to our room.
The room was practical and small but had a great view towards the Caspian Sea. The AC was inaudible and worked fantastically; it cooled down the room in minutes. The Internet came in at 8 Mbit at any time (except for a few hours one night when it was slow).
I liked the bathroom, which was a decent size and featured an excellent, high-pressure shower that was a great respite after sweaty days in Baku.
We were amazed by how well we slept in the complete dark (thanks to the big curtains) and in the cold room every night. We could hear some noise from the road outside but it was usually quiet enough to sleep without any earplugs.
The hotel staff seemed to always be on top of things and spoke English almost fluently. It seemed the hotel was rather empty the first two nights (it was a weekend) and then pretty full after that. There was no breakfast included and we chose to eat at the nearby Entrée instead.
The Park Inn by Radisson is a good, high-value option, with rates as low as $80. It delivers a very solid product where everything works just as expected. There are no bells and whistles but everything works just as I wished it would.