Caroline and Don have very clean and comfortable apartment, very close to Mare str. Victoria Park Rd. bus station. From there you can get directly by bus to Liverpool Street Station (where is the last train station from Stansted Airport) and the city center. We highly recommend to buy Oyster cards,or to use credit cards with app. You can use them for the tube, buses, overground, even for some boat trips and to take back your deposit and the rest of your money on a Oyster cash machine.
We have found yummy Fish&Chips restaurant and pub at the end of Victoria Rd (follow Caroline's instructions for restaurants)
Enjoy your time and in the nearby Victoria park with a lovely garden and lake :)