Arenaa Heights vs Ace Starlit: Which one, yaar?

Hey guys, I'm confused between Arenaa Heights The Ultima 107 and Ace Starlit in Noida. Arenaa is ready to move, which is tempting. But Ace Starlit is under construction. What's the builder trust factor like for both? Kisi ko pata hai? I'm also thinking about carpet area efficiency. Which one gives more usable space, actually? Has anyone experienced hidden costs with either? Also, which has better potential for rental income in the next 5 years? Mujhe advice chahiye. Not sure which way to go. What do you think?