Grocery store prices here I am estimating to be 50-75% cheaper than North American prices. I am sure this is true of western European prices. Transportation is very cheap. You can take the metro for just 4uah and a taxi will not cost more than 50uah from any point of the city to the centre. A taxi to Borispol aiport will cost around 250uah (~$10) that is if you don't deal with a taxi shark. Bus or train are also very cheap if you need to commute between cities.
You can get a good hotel, not luxury for $16-$20 sometimes including breakfast and wifi in the capitol and even cheaper in other cities.
Of course there are western prices in hotels and restaurants if you go there but you don't need to as you can get comparable quality and level of services at Ukrainian establishments.
Overall you will not spend much to live here but if you work here and don't work for a western company you won't make much either. English teachers don't get paid much by western standards. They earn between 150auh - 250uah per hour depending on their qualifications but again things are dirt cheap here so you can survive on that money. I recommend to save up a little nest egg before coming so you can have a kind of safety cushion.
Then enjoy
