I happily recommend Lenny’s place. Lenny’s a great host - very responsive, and the place has plenty of character and is fairly spacious by NYC standards for the price, with a terrific back deck. The deck could accommodate 4 people socially distanced, probably six max.
Lenny’s place is about 7-8 minute walk from fabulous Prospect Park. About half way there you hit the really elegant old historic part of Park Slope, tree-lined streets full of brownstones etc. Lenny’s street is quiet and safe though. Note this is not the hipster part of Brooklyn - that’s about an hours walk away.
Note if you’re planning to work from Lenny’s there’s not a desk space with good natural light. There’s a dinner table for four in the middle part of the house, with overhead lighting but not much natural light there. The living room has natural light during the day. If you’re on vacay, not an issue, and the deck is great, weather permitting. All in all, Lenny’s is a good and safe bet for 2-3 people and good value, and he’s a very nice guy too.