I too installed a Rifle Basix Trigger in a Marlin today. The rifle is my buddies, a Marlin 2000L Target Rifle. The installation was a snap. After a little tweaking to get the engagement right, I tweaked on the weight of pull screw and ended up with a super crisp 1 1/2 pound trigger. We did have it around a pound at one point and it was holding just fine.
After getting it all tweaked in we headed for the indoor shooting range (temps in the single digits here to). Ron had a heck of a time getting used to the trigger, and kept hollering "I wasn't ready for that one". However after a couple of USBR Targets he was getting the hang of things.
When we were cleaning up after 3 hours of shooting I asked Ron if he wanted me to put the original trigger back in, and his reply was I dare you to try.
I was impressed overall with the trigger. It adjusted quite easily, and was super simple to install. Was it worth the money, I can not honestly say, but if I had a Marlin Rifle a Rifle Basix Trigger wold be going in it, no question about it.