The angle on these lights is just not right. And the leds themselves are too boxy, which is an altogether different look from the R LEDs.
I installed my R LEDs a few weekends ago and I have to say I absolutely love them. It is worth the price you pay, and besides around $700 is still less than pretty much any other german car's LED tails. My mom drives an A5 and I saw the replacements for those LED tails are upwards of $1200. I know they're Audi but they're still LEDs (and I think mine look better anyways, they're so deep looking in daytime and night).
Bottom line: If you want your car to look like you just are awesome and have cool lights, get the R LEDs. If you want to have a very obviously modified look with some crazy bright LED turn signals and boxy, angled main lights, go for the cheaper ones.