I use nova nkt-2726 befor 1years ago . It is very easy to use and hard to clean. The capicity is 1.5liter. Youcan use it more than 2years .service also good . It have’nt take more time to boile. If there is any problems it have 2years warrenty . They give good service and supporyThe designe and style is also good looking also good .every thing is good .