I've also got the Lidl Silvercrest scales, bought a month or two ago at £9, weighs up to 5kg in 1g steps. They seem to work OK. The good thing about them is they take ordinary 2 x AA batteries, not button cells/9v batteries. The weird thing is there isn't an on/off switch, after you've used it the display goes into a clock mode.
The problem with all the Lidl 'specials' is that you have to wait for Lidl to have it again, you can't just go and buy it.