TG Heritage: Frustrated with the moving possession dates

My current 2BHK in Marathahalli is getting cramped, so I'm looking at TG Heritage for a 3BHK. Honestly, the sales team promised possession by Q4 last year. Now they're pushing it again, saying Q2 this year, maybe Q3... This delay is killing my ROI calculations. I'm already stretching my budget for this upgrade. Is this typical for them? What's their actual project delivery track record like for previous projects? Worried about the capital appreciation if they keep dragging this. Anyone else facing this with TG Heritage? What did you do?