Confused about Supertech vs ATS. Any real experiences?

Since January I've been trying to finalize a flat. I work in real estate, so I know the super area vs carpet area games builders play. Off the record, Supertech's Emerald Court mess is a worry, but their new projects look good. ATS, on the other hand, seems safer, but their prices are higher. Has anyone faced hidden charges with Supertech at possession? I'm honestly not sure which way to go. What's the real word-of-mouth on both?