As per my experience sulekha provides good service for the end users, when I decided to shift mumbai few months ago I dint knew anyone in Mumbai & I was in need of a room/PG so I searched over net for sites which provide me the perfect information about accommodation.
I signed up for a free account & posted my ad in sulekha & in few days I got response for my ad & got a room in malad. So for me sulekha was very helpful & this site brings people so that everyone can exchange what they have & what they need to buy or sell or rent overall its a good site.
After I shifted to mumbai I fell ill one day & I dint knew any doctors so went in search for a good doctor with proper specialization & I wanted a doctor in my surrounding places so that I can reach them easily sulekha provided complete information about the hospital name, doctor name , address & contact information & finally contacted the hospital & went for checkup.This is how sulekha has helped me.