I stayed here with a colleague a couple of weeks ago on a business trip.
The reception staff were very welcoming and friendly, check in was very smooth. The rooms were very clean and the amenities were good. There was a coffee/tea point and some complimentary water available. The only problem that I had was that I found the pillows were quite flimsy - It felt as though there wasn't much there and I ended up sleeping on the pillow and the decorative cushion too - there may have been a spare pillow in the cupboard, but in fairness, I didn't check.
I asked for a wake up call when I checked in, and my colleague ordered one after we returned from dinner, my wake up call came as expected but his didn't unfortunately - they were very apologetic over the mishap and were keen to rectify things.
Overall I liked the Crowne Plaza very much and would recommend it to others visiting Bratislava.