Upgrading to a 3BHK: SS Camasa on my radar

₹1.8 Cr for a 3BHK at SS Camasa, Sector 84, looks decent, but I'm worried about the builder's delivery track record. My kids' school next year is fixed, so on-time possession is crucial. I heard kuch projects mein bahut delays hue hain. Also, amenities jo promise karte hain, like a proper clubhouse or kids' play area, woh finally milte hain ya sirf brochure mein hi rehte hain? And hidden charges ka kya scene hai at possession? Has anyone here bought from SS Group, especially around Dwarka Expressway? Kya experience raha hai with their project delivery and post-possession maintenance?