Stayed at the Carles Hotel, very reasonable price, breakfast included, and centrally located. Would recommend. Also stayed at the Park Hyatt on points, beautiful space if money is not an issue.
La Carniceria, Uber there, need a reservation (have hotel make it or try Facebook messenger). Could do wine tasting beforehand at Pain et Vin. Both were excellent in the Palermo neighborhood These are all in walking distance of Retiro/recoleta Farinelli for breakfast or lunch Let Pain Quotitien Roux for lunch or dinner
Sileo hotel is an affordable boutique hotel that backs up to the Recoleta cemetery. Great location and nice hotel. Easy walking distance to many attractions. If you want to go further, taxis are cheap in BA