Ive had a Lee 1000 for 14 years and have probably loaded about 80K+ on it.It really is great value for money.They can be a bit finicky,but once you learn its operation it works well.Ive found that removing the primer sensor (take the small spring out) helps the primers feed alot better.Ive just finished a batch of 2K 9mm rounds and didnt have a single primer misfeed.
As others have stated,you must keep it clean and especially the primer chute filled.I keep a can of compressed air on the bench,and give the plate/primer punch,the odd blast to keep it clean.Lightly lubing the cases(especially the 9mm)really helps the press operation as well
The case collator is very useful,but I think that the bullet feeder is a waste of money.When loading,I keep a handful of bullets in my left hand ready to put into the case mouths,so I dont think that things slow down at all.
I bought my original press when I was a (relatively) poor student,and although Ive subsequently thought of getting a Dillon,my Lee works so well,that I couldnt really justify it.Infact,Ive recently bought another pro 1000(just over $140 from Cabelas!) so I dont have the hassle of changing calibers.I think that I will stick with my Lee for the next while!