I personally don't think they are bad, but I'm just not a fan. I like some aftermarket options but hear bad reports about dectane hence I've not bothered. Having said that, I'm not a big fan of the factory fitted rears either lol
I think they are nice, but I would probably prefer the light bar ones, i would like to get them but again they are too problematic, I just got the R smoked oem ones instead. They remind me of the rear lights on the GTD from about 2010.