I installed the large sector version a couple months ago and have been very pleased with the results. Really, it feels like rack and pinion. The only installation issue I had with the kit itself was the seal retaining clip for the slop joint. You can't quite get it to bend correctly to hold the seal in place; this was solved just by reusing the stock retaining clip.

The box was well worth the price and made one of the largest day/night differences in how my car drives.