I found the complete opposite with a wilko set R got - so many lazy bits where it was an entire top to bottom wall section in one. Also it is constantly falling apart which is quite annoying.
Varies a lot with regular lego I think. There is a dump truck R has which is mostly made of massive single pieces, but then he has a street sweeper that seemed really creatively designed from lots of small standard parts, with just the brush bits probably unique to it (and possibly the specific windscreen, but that might be in other vehicles maybe)