Excellent location! It was exceptionally easy to get from Lida's condo to Manhattan at a fraction of the price for a hotel. Plus, Williamsburg is a happening neighborhood with lots of shopping, food and nightlife!
This area definitely has a youthful vibe, so if you're coming for the nightlife it's perfect; if you're looking for a soundproofed night's sleep bring noise-cancelling headphones for the occasional revelers that pass by on the street below.
Recommendations - 12 chairs for breakfast; nearby Black Seed Bagel has great breakfast sandwiches, and Martha's Country Bakery is desert seekers paradise! The Williamsburg Ferry station provides a scenic trip to Manhattan traveling under the Brooklyn Bridge and stopping near the Financial District. You can also go by Bike, with bike rentals right up the street and well developed "exclusive bike lane" corridors throughout the city. Despite bad press about Subway safety we used it extensively reach all parts of Manhattan island and didn't encounter any threatening situations in a week. Just be sure to allow 30-45 minutes to get anywhere, including walking time, mind the gap!