Recently I had a previlege to go to Oriental Spice.They serve you good delicious chinese. I will not say it is a complete authentic chinese, but have a good taste.
Space is small, if I compare with Mahesh Lunch Home(Thane), space will be 1/5th (20%) of Mahesh Lucnch Home.
So, if you are planning to have a dinner in weekends, try to make a call and reserve you place.
Otherwise you will end up wasting atleast 1/2 hour of valuable time. Try not to go in the afternoon. Reason because of powercut in Thane (around 3.5 hours). They have inverter facility, but their will be no A/c on during power cut. They have some really delicious food in non veg. Less variety for veggie people.
Ambience is also Ok. Nice and quite atmosphere. People who serve are well dressed and greet you with smile.Overall a nice experience. If you want to explore things in thane, this is one of the many place you can visit.