Mohali Affordable Homes: What's the real ground reality?

Budget finalised, loan pre-approved – now stuck on which sector. I'm currently in a 2BHK in Sector 70 Mohali, thinking of upgrading to a 3BHK or small villa. Already have a home loan; this move needs to be sahi, ROI bhi dekhna hai. Was looking at 'Affordable Homes' corridor. Yaar, what's the actual ground reality wahan? Commute, schools, local market kaise hain? Brochures toh achhe hain, I want hidden cons. Is the 3BHK price jump really worth it? My tip: always talk to 5-6 existing residents, not just the sales guy. Unse real issues pata chalte hain. Also, check construction quality at different times. Koi aur practical tips hain jo miss ho jaate hain?