Walk Score describes an address, neighborhood or city with a Transit Score of between 70 and 89 as having excellent transit, and a place scoring between 90 and 100 as a “rider’s paradise.”
Of note here is that even among the nation's 10 superior metros for public transit, none ranks in total in the "paradise" range, although neighborhoods within them do. Here's insight into that dimension:
None of the cities on the list score in the rider’s paradise range, from 90 to 100. However, individual neighborhoods in many cities are riders’ paradises, like Boston’s Bay Village (100), Philadelphia’s Logan Square (100), The Loop (99.1) in Chicago and Belltown (98.1) in Seattle. Some cities that didn’t make the top 10 list are home to riders’ paradises, including downtown Pittsburgh (97.1), Old Town Chinatown (92.2) in Portland, OR and downtown Houston (92.8).