Clean, comfortable rooms, just a bit warm. Ceiling fan helps a bit, but a stronger desk mounted fan would've helped. Block 15, while quite far from the reception, restaurant, etc is ideally placed for access to the river path to the village. So unless you plan to use the main facilities and bus shuttle, better off in blocks further away, ours was Luigi. If you are fairly mobile, i personally think you can walk to the parks quicker than waiting for a bus.
Service was extremely quick with a couple of requests, such as a kettle. One criticism would be that none of the cold drinks dispensers which took cards seemed to be working, plus very few of the ice machines on our second night. But overall, happy to stay there again- I'll just make sure ive a lot of change for the machines!