Now that they have expanded to take up about half a block in two separate locations - they have become even more powerful. Kol Tuv is a grocery store that, as it's name says "it's all good". They have all kinds of strictly kosher food and appear not to bend the kosher standard. Kol Tuv is constantly expanding, and bringing in new products.
They are happy to have customers come in to make purchases, or orders over the phone. They also make deliveries.
Best of all is that they are open nightly until midnight.
The only thing to watch out is that not all things are priced, and sometimes the chashier gets the prices wrong.