Taste Savant's Sonia Kapadia talks about her 'anti-Yelp' ambitions and a possible reservation across the pond

“You gotta have a gimmick,” Stephen Sondheim once wrote in a lyric in the musical “Gypsy.” Sonia Kapadia, who launched Taste Savant in 2011, said her business has a differentiating niche from Grub Street, Urbanspoon, Yelp and the other dining-out referral sites...