Sector 151A ke prices sahi hain for investment?

Budget finalised, loan pre-approved — but abhi bhi confused hoon Greater Noida mein kahaan invest karoon. I'm based in Dubai, so site visits are tough. I'm looking at Sector 151A. Log bol rahe hain its got good potential due to infra near Jewar Airport. But are current property prices justified for a 2BHK around 70-80L? Should I expect good appreciation in 3-5 years? Yaar, resale market wahan ka kaisa hai? Will I find buyers easily if I need to exit? Need ground reality check.