You aren't getting a evening meal with the lounge?
In most Hiltons the executive room is very similar. Perhaps some upgraded furnishing, but very similar. In my experience, quieter. The lounge for a lite dinner and a lite breakfast is perfect, and worth it. That is what you are paying for, generally, in an executive room. To get that for free, as a Gold or Diamond, seems worthwhile. What were you expecting, a suite?