My cat loves it and tells me that not only does the litter tray smell better, but it is much more roomy than the old plastic one he was using. So 'paws up' for the tray. One little niggle is that the height of the sides is not quite up to par with the old plastic tray, so litter tends to be pushed over the sides. I realise the low sides are designed so that older decrepit cats can get over the lip, but for younger sprightly felines a 100mm height would be more suitable. The clip on sides are pro...