Beverly Hills kitchens split into two groups. North of Santa Monica Boulevard, in the Flats and up into Trousdale and the canyons, you have large single-family houses — 1920s Spanish and Tudor homes on Roxbury and Rexford, mid-century modern houses in Trousdale, and newer rebuilds. South of Wilshire there are blocks of 1950s–1970s apartment and condo buildings, often renter-occupied, with compact kitchens.
In the bigger homes the sink cabinet is often custom millwork with soft-close drawers, a filtered water tap, an instant hot unit, and sometimes a second prep sink with its own disposal. Working in there means laying down a mat, protecting the cabinet face, and not scratching a stone countertop when the flange comes up. I take that seriously, because a scuffed cabinet costs more to fix than the disposal.
In SOWI apartments the job looks more like the rest of the Westside: a builder-grade disposal at the end of its life, a tight cabinet, and an owner or manager who wants it done in one visit.