Got one of these delivered today, the aim is to please the larger drinkers in the family

A bit disapointed the kit appears to come with an ale yeast as it talks about fermenting at the normal ale temps.
Should I swap the yeast and use Saflager and ferment at low temp for a better result?
I now have a converted freezer so low temp ferment is no problem

I intend to use either 750 g of Light Spraymalt and 250 g of sugar or 1kg or Spraymalt.