This is based on my personal experience with Concorde group in purchasing a flat from them.
They are very good before the sale and will promise lot of things but will not honour the commitments after you pay them. Few suggestions for potential buyers:
Never rely on their verbal commitments/promises.
Always try to add each and every small thing in the agreement or at the least ask them to respond from their official emails. If they try to convince you that they can neither add that in agreement nor they can send an email, be very careful then, 99% times they would not honour the commitment.
Most of their staff members are unprofessional including their Directors who wont even have a courtesy to resolve any issue with the customer.
Their CRM team is worst. The name of this department is oxymoron. This is not really a Customer Relationship Management department, but their effort goes in cheating customers.
I would not recommend anyone here to consider their flats. In case you have decided to buy any flat, be very careful with them.
Thanks,
Bivas Banerjee.