The location:5* - At 10 meters from Skadarlija street (yes, the one full of terraces and interbelic atmosphere)
Amenities:4*( even a washing machine for the laundry,wireless included,55 TV channels-also international ones)
Price: for 3* so you get value for your money :)
Response time from the owner: minutes to hours (so u can really make a deal in the same day u decide to start talking to the owner-who speaks perfect English)
Bonus: at the ground floor there is a Bakery Shop ( a very new and nice one) called Hleb&Kifle, so a great breakfast along with 2 nice Latte Grande is pretty much assured (Belgrade prices are aout 3-4 times smaller than EU capitals)
Shopping: Knez Mihailova street (main shopping street in Belgrade) is at 3-4 minutes by foot
USCE Shopping mall is at 5 minutes with Taxi (It will cost about 600 Dinars - 4-5 Euro)
All in all, great place to spend some R&R!