These fans are awesome! Fairly easy install. HIding and positioning the wires was the hardest part. Instructions are ok. If you are new to working on PC builds then you may wanna watch some instructional vidoes. Like I did online. This is a perfect model, the one up has alil more bells and whistles but the functionality of this HD model is great and they just look so nice. This was my very first time doing my own install on my PC and it came out awesome! My friends thought I had someone else do it, but nope all me!