Sorry it's taken so long to respond, however only at 1700 miles so far. Performance seems very good for the size of engine, so have no problem with turbo lag. Previously drove turbo diesels which had nearly twice the torque, which gave the instant power while turbo pressure rose before kicking in.
Grandland X 1.2T 8 speed Auto Tech Line Nav (All Road pack, Park & Go pack 2 and Emergency Spare wheel)
I have had what I suspect is a slight turbo lag on the odd occasion but nothing to raise any concern. I am still surprised by the power and nippiness of the 1.2 and I love the the sound of the growl you can get from the engine.