I speak almost fluent Castellano with some lunfardo thrown in. I needed none of it to get 5.25 on lavalle, and in Palermo. I cambio'd about 7k usd for pesos and did not get a falso. You hand the guy your money and usually there is a rate on a calculator. No talking, no paperwork.

Try a few hundered at first.

Send me a Pm and I'll give you the address.

To top it off I rode the 59 and 10 bus with two months wages in my skivvies.

Dress code is key, no shorts, no sneakers, darker colored clothes with no obvious gringo tags. No Fannie packes either. No sunglasses. I can usually spot a tourista pelotudo two blocks away.

If you use a taxi in full gringo mode you will get clipped by a few blocks or worse.

There is nothing wrong with riding the collectivo aka bus. If you go to far get off walk across the street and go back the way you came. Make sure you have monedas aka change. The bus is usually going to be 1.20.

The subte is a big quillombo currently, I would not trust that it will be running at any given point.

If you do use an ATM you will be limited to 1000k pesos per transaction that will charge you 17.88 pesos per. Geta schwab card or others that will refund your fee.

Better yet use Xoom and pickup in retiro at Libertad 1057.

Once again learn some Spanish before you come to BA.