Not tried their drill bits, but silverlineC, saw blades are not very good at all; far too soft (sourced from toolstation).Seems a split decision between cheap and expensive!
Struggling to find some Irwin sets but I've found some silverline ones which I'll try out. ÂŁ13 is the cheapest I've found for the 1000mm, ÂŁ29 for 1500mm sets so will see how they go.