What buyers miss about carpet area in Emaar Emerald Floors Premier

Emaar Emerald Floors Premier keeps popping up in my search; finally taking the plunge after years of renting. My landlord just hiked rent again, I'm done with paying EMIs for someone else. I'm wondering about the actual carpet area efficiency here. Brochure mein kuch aur dikhta hai, but in reality, kitna usable space milta hai? Does it *feel* cramped after moving in? Also, what's the daily life quality like? Noise levels, air quality near the complex? Any tips on checking the true usable area during site visits, beyond what the sales guys show? Please share your experiences.