I have had mine a few months now and have loaded maybe 1500 rounds with it. Primers were kind of iffy for a while but things soon smoothed out and haven't had a primer problem in probably the last 1000 rounds. Probably the most help was leaving the primer assembly just a little loose, rather than tightening every thing down snugly.
I moved all my Lee dies and Pro Auto Disk from my Classic Turret to the LnL. They work as well on the LnL as they did on the LCT, which is excellent. I added the RCBS lock-out die also. I test it for no charge and double charge every time I start to load. The video someone referenced above is very good and shows you how to adjust it off the press, which is much easier.
Education teaches you the rules, experience teaches you the exceptions (Plagiarized from Claude Clay)