First few months in Sohna, need quality check advice

Spent the whole Sunday checking out options in Sector 65, Sohna Road a few months back. Finally went with a 2BHK in Signature Global, thinking it was a good deal around 1.2 Cr near the SPR Extension. Possession was in March, aur abhi just move in kiya hai. Honestly, construction quality se thoda disappointed hoon. Chhote-mote cracks dikh rahe hain already, aur bathroom mein halki seepage ka issue bhi aa gaya hai. Builder ka customer support after possession is also a bit slow. Calls uthate nahi hain jaldi. Maintenance charges are also higher than what was indicated. Sohna mein aur koi recent buyer hai jisne Signature Global ya Godrej Properties se liya ho? Kaisa experience raha aapka with quality and post-possession service? M3M ke baare mein bhi sunna hai, but wahan prices thode high the. Just want to know if this is normal ya I should push harder.