I stayed at the Ibis for one night on 6th June 2013. It is very conveniently located for central Cardiff and is just a few minutes walk to the Central and Queen Street stations'.
I was able to book the room at very short notice at a cost of £49.00. The optional breakfast cost £7.95. The quality of the food was good, however it was somewhat on the cold side, but I won't rate it down for that.
I parked my car at the nearby multistory park on Plelt Street (about five minutes walk from the Ibis). This cost me just £5.00 for 24 hours which is great value in Cardiff. Make sure you check (avoid) other car parks nearby as they charge £1.00 for every hour with no reduction for long stays.More