Go ahead and experience once in the lifetime by dealing with them. Even after you had paid them and purchased the flat you will made feel like on their mercy ... atleast I am feeling same even after nearly 2 years of purchase of flat and being residing there for more than a year now.
Very Unprofessional, Poor Quality Work, False Promises, Documentation missing amenities/things mentioned on Brochure (they outright reject your claim saying its not in documentation), Nexus with land owners, make you feel pity on yourself.
Need proof, visit my apartment SLV Platina in Horamavu village, discuss about builder and its work/promises/amenities.