I ate at Sweet Coco's a couple of times because it was close to my homestay (near the Innsbrucker…read morePlatz U-Bahn/S-Bahn stop). The food is pretty good and not expensive.
When I come here, i get one of those cheaper sushi rolls to start, and I order a Pad Thai.
The Pad Thai by itself is pretty perfect. I love spicy food, and one time I ordered it "very spicy," and they REALLY made it really spicy, to the point where I was sweating and couldn't enjoy my meal. As long as you don't try to modify their Pad Thai, you'll really enjoy themselves.
They don't accept credit card - so be warned! This place is really good if you're looking for Thai and Sushi (and some covert Viet mixed in there) meal for around 10 Euros.