I have booked a 2 BHK flat in Radiant Spencer. My experience with them so far has been good.
The construction seems to be right on track at this point of time. The project is due for possession in Dec 2015 and I hope they live up to the expectation and hand over the project on time.
They are also open to customization. I expect them to be a little more transparent and keep the customers informed about any internal changes.
Though the changes may be minor for them but the impact on the customer would be greater.