Ansal API vs Others - delivery issues?

I'm currently in a 2BHK and thinking of upgrading. Ansal API's Carnation Garden has some good deals, but I've heard mixed reviews. On-time delivery track record is a big concern for me, especially after hearing stories from friends. Is it worth the risk for a slightly lower price? Already have a home loan, so can't afford delays. Anyone had a good or bad experience with Ansal API's possession? Matlab, kitna late karte hain yeh log?