Would recommend if they re in North Stamford at that budget you go for The Inn At Pound Ridge : https://www.theinnatpoundridge.com/menus/dinner or if you choose to spend a little less try North Star also in Pound Ridge: https://www.northstarny.com/ both are far better than any Stamford spots with the exception of Cafe Silvium. If you prefer a very high end spot go with Valbela in Riverside CT https://www.valbellagreenwich.com/