I started my daughter there a few months ago when she was 8 months old, and she loves it. I would recommend it. The baby room is nice, with a good sleeping area, the staff are great and the outside area is fantastic. Sometimes when I drop her off, she actually wants to go to the staff and doesn't seem bothered that I am leaving her. It's a bit sad for me but I feel totally reassured!
Not sure if you are still looking at nurseries, but if so I can vouch for Buttercups.