Gayatri Life investors, what's the resale scene like?

Gayatri Life ka resale market kaisa hai, especially for a 3BHK? I'm in a 2BHK in Sector 78 now, thinking of upgrading and Gayatri Life looks interesting. Completed project hai toh delivery ka issue nahi, but builder ka maintenance aur resale potential long-term mein kaisa hai? Any real experiences with capital appreciation post-possession?