I'll be interested to see if things have changed regarding valet parking there. Their website says "we have ample parking plus a valet service is available free of charge from 6pm weekdays and 1pm at weekends". Available is one thing, but the last time I was there, about two years ago, the valet insisted that he was parking my car. I insisted he wasn't and he invented some lie about me not being insured to park it myself. We had a standoff for quite a while until his manager came and I was allowed to park my own car.
Why would you not let a valet park your car ? you prang it, your insurance, they prang it, they pay for damage !!!
I have driven the best part of a million miles without ever pranging anything, so I'm willing to take the risk that it won't happen while I park it this time.