A pretty large Tesco store on St Peters Street, a short walk away from intu Derby (where there is a larger Sainsbury's supermarket). It's a Tesco Metro store, which is basically a pretty large store (bigger than your standard convenience style Tesco express, but smaller than the regular supermarket/superstore) and located in a city centre.
The selection in store was okay for a store of its' size, I disappointed with the Free From section and found the store to be a little frustrating in terms of cleanliness, the floor seemed a little dirty and like it hadn't been cleaned in a while, which was made worse by warehouse cages again blocking multiple places (I visited at a peak period in the afternoon where many people are just finishing work, the store was busy - an awful time to stock shelves or just forget and leave things there).
It does open late, often until 10 pm and isn't restricted to the shopping hours of intu Derby (unlike the larger Sainsbury's supermarket nearby), so at night if you need a supermarket in the centre of Derby this is pretty much your only option. 2* read more