Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Beautiful product but needs better parts QC

I am an intermediate level woodworker and this is my first router lift. I bought it to use in a shopmade router table, and I am very happy with it so far. I have been freehanding everything with a VERY old Craftsman Router up until now. I need to buy a new router to use in this system (I'm thinking Bosch 1617EVSPK so I'll have a plunge router, too, if I need it). This lift is a precision instrument, and seems to be based on a design used by Jess-M and Rockler as well. My only complaint(s)... it comes with six threaded inserts to use in it's leveling system. Two of the six inserts were defective (bad threading). Also, the leveling screws (nylon) are too short to use in any table much more than 3/4" thick. I had to go out and search for a new pair of inserts and longer leveling screws to use with my table.