I've had three great stays at the property. Great views, food and service is decent. The beach isn't great but neither are most on Rhodes though there are a few sandy ones. Never saw a laundry room but it's a large complex so email them.
Don't be worried about your platinum benefits. You'll still get your free breakfast (quite excellent) and possibly a small room upgrade. Only once did they give me a suite. I normally book rates below 200eu