I had recently had out my Chanel tweed flap, so that close handling may have affected my opinion about the tweed quality....but you might get a non-crooked tweed, which would have tempted me for sure! (I ordered the pink/black mini Kensington tweed.) . If it's an easy return for you to do (in case you don't like it), I say go for it!
As far as the rainbow metallic, I love the flap, and ordered the WOC after seeing it on my goddaughter (had ordered one for her as a gift). I will never get sick of the those fun colors!
I am really liking what KG is doing. The rainbow striped WOC and the orange transparent bag are on their way to me now. 
The only bags that I've ordered that I didn't like were the round leather bag (the bag didn't seem structured enough to hold the shape/zipper was flimsy and hard to zip), and the mini tweed bag (tweed felt a little cheap, and the pattern was crooked). But for the price, KG is definitely getting style points! I have the rainbow flap bag and love it. 
. Happy Friday! 
