I am feeding my Maltese Purina Supercoat and she seems ok on it. 
We have fed her lucky dog and did feed the springer this but they had real sloppy output   
I used to use the supermarket "homebrand" varieties but was told that they probably werent good enough. 
And I have stopped using wet food but since reading some threads on here i think i should go back to a wet/dry combo. 
Our staffy cannot have Pal as it gives her bad gas odours!! 
I am trying her on Nature's Gift wet food and will try the maltese on it too. 
Coles have had 8kg Supercoat for $20 the last week (but it ends tonight).... savings of around $4 a bag!!