My husband and I really enjoyed our stay at Len's apartment. The location is wonderful. It was so close to multiple muni lines that accessing all areas of the city was a breeze, easy for the visitor to navigate because of the numerous train options. There really is no need for a car, early on we took 1 taxi downtown and that was even silly. The muni is 80% cheaper and about twice as fast. Our travel time in and out of SFO via BART/Muni was just over an hour each way, pretty easy to navigate and probably faster than a taxi. The neighborhood and surrounding areas was delightful to explore on foot. Many restaurants, a few clubs, interesting shops and delightful parks are within walking distance. The 24 hour Safeway grocery store 1 block away is beyond convenient.
About the apartment itself:
Just like I read in a previous review, the apartment felt much larger than the photos lead us to believe. The building is well maintained, extremely cute and interesting, and all the details for the visitor have been well thought out. We especially appreciated the motion lights everyplace needed. Len has a great small library that has something for everyone. The kitchen is clean and nicely equipped, beyond what was expected. The desk has a ton of usable space and the internet connection rocks. Nice reclining sofa (new?), comfy bed with plenty of extra blankets, typical bathroom. When we were there we had some bad weather for San Francisco, bad meaning cold temps and buckets of rain for hours on end. Needless to say we were thankful we had a nice place to wait it out in. I think this place is a perfect choice for a single, couple, or maybe a small family. Maybe not so good for a party weekend with friends, because it is a residential only block and things are (should be) quiet at night.

Thanks Len, we will be back!