I have always had a not so good experience with Dominos and avoid ordering myself, but theyre well spread out and conveniently located so when am with friends have always ended up ordering from Dominos.
Dominos is primarily a takeaway joint - NOT a place you would enjoy going to. if you order on the phone, they say half an hour but deliver quite fast - about 20 mins.
I dont like the pizzas at Dominos - esp the non veg pizza. You get little tiny pieces of chicken that are quite unappetizing. The pizza tastes bland and is like cardboard.
But lately I have been having the Veg pizzas and they are not so bad - especially the Farmhouse. The toppings are quite generous. Avoid the paneer pizzas.
I also find lack of variety in the menus. Sure you can always select your own toppings but that option works out to be quite expensive.
Cost
Ull end up spending a minimum of 100 rupees for a 8 inch Veg pizza, which can be had by 2 people.
My experiences are restricted to the Vashi and the Malad branch. Dont know about the other branches.