I'm sorry to go against the flow here and would stress we only had a coffee (being about 10.30 am) and thus didn't sample the food.
It is, indeed, a pleasant environment and comfortable.
On the down side, serving up two coffees took an absurdly long time (one reason for this was that the staff were now having their own breakfasts).
The young woman left on her own to make them seemed out of her depth and the quality of the coffee was dire.
I'd mark this place down more severely except for the sweet-natured staff, who were very nice.
I recognise that if we'd gone for lunch here and sampled the attractive Turkish menu I might be writing a very different verdict, but I can only relate what we actually experienced.
If you own or manage Otto Cafe - Regent, register now for free tools to enhance your listing, attract new reviews, and respond to reviewers.