Mine works very well. I guess there is always somebody that hates anything mentioned. I do understand that product results vary greatly depending on the part and the installer.
Sorry, the point of my post was not to slam an after-market manufacturer. The one I mentioned delivered a phenomenal trigger group (at a price).
The point I did not correctly make was: The Ruger 10-22 lends itself to such a high degree of customization that it will surely cause an upset in the family budget when taken to extreme limits.
It's a testament to Bill Ruger's design bureau that the 10-22 spawned an entire industry of after-market accessories for that sweet carbine.