Builder support Mohali mein sirf paperwork tak?

Okay I'll be honest — I completely underestimated how confusing this process is. I'm based in Dubai, looking at Mohali, 3BHK near Golf Course Road. Tata Gurgaon Gateway vs Tulip Melrose ka experience kaisa hai? Especially customer support and possession ke time pe hidden charges? Can't visit, so real feedback matters.