Makeup Brush Sets

So, I'm planning on buying a few makeup brush sets to do reviews on and try out.
Some brush sets that interest me at the moment are the Kirkland Borghese Brush Set and the Stigma Pretty in Pink Travel Brush Set.
All the brushes that I pretty much own are small-sizes so I don't really mind if I get the travel size or not. I actually prefer smaller brushes as it feels like I have more control. Bigger brushes seem to bulky for me or to control.
I don't know if I should just buy one set or both.
Anyone have any ideas? HAHA

I should be getting my E.L.F. powder brush (good for stippling) today and that means my Laneige review should be coming up soon! Stay tuned. :)