Leon's place was exquisitely decorated and close to downtown. Located near Lime and other scooter hubs, the daily commute to the Convention center came to about $3 each way (or $5-8 Uber). A Cardenas grocery store is located directly opposite, which is practical, but also means there are interesting people passing through.
It's a nice place to stay at with friends (although the bars on the sleeper couch might give you a stiff back after a few nights). Just please be conscious of the volume when having conversations, as the neighboring apartment may be disturbed by it (you can hear everything). Over-all Leon's place served as a good hub while out and about in San Jose!