We had a great stay at Alex's loft in Williamsburg and really enjoyed our time there! It's a lovely apartment, nice rooms and bathroom (with hot water (!) which was amazing after a day outside with -9°C). From the apartment it takes just 3-4 minutes to the subway station Bedford Avenue and also the bigger streets where you can find everything like restaurants, bars, cafés and shops. With the subway it's just about 10-15 minutes to Manhattan and the train runs the whole night. As you have to drive everywhere, if you don't just want to visit Williamsburg (which is btw a nice quarter, more quiet and relaxing then busy Manhattan), and one ride is about 3$ a limitless metro card (from 7 up to 30 days) is absolut worth it! Alex gave us good advices and was super hospitable, flexible and really helpful with everything. Like when our flight back got cancelled she immediately offered us one of her couches so that we didn't have to sleep at the airport (thank you again for the offer!). We'd love to come back one time! :)