The 4 link system is superior for sure, the 1,200 dollar one.
The other lift uses drop down brackets for your factory radius arm that wind up flexing and deflecting and the steering tends to wander around a bit. Not to mention they look like $hit hanging off the brackets below the frame 1 foot. Don't do it.
Either go with a new radius arm setup or the 4 link. NO Drop down bracket lift is good.
I'm sure some people want to argue with me about it but I bought my truck with one. Didn't take long to figure out why a truck with 50,000 miles on it wandered all over the road with the ruts and whatnot. Put on a Fabtech radius arm kit and holy crap drove like a stock truck instantly.
You may want to get some soft ride springs on it. I went with I-Con 7" progressive coil springs and it made a huge difference. I had rough country coils on it when I bought the truck and it was rough and I mean ROUGH......