I purchased this two years ago.  I actually have two of them.  Part of my purchase was based on positive feedback from the postings below.

Problem:  This plate is NOT flat.  The slight "crown" is enough to mess up any precision work.  You cannot do any type of miter work with this plate.  You can forget about rail and stile doors.  Just comes out sloppy and you end up wasting material!

Furthermore, the plate can sag with a "memory" effect over time, especially if a heavy router is left on the table.

The rings are a bear to get out and don't leave you with a lot of flexibility for the size of hole you may need.

This is a mediocre product.  It is relatively inexpensive, but will be wasted money if you buy this and get a flat (e.g. al  aluminum) plate later on.  Probably okay for routing that does not involve joinery or a great deal of precision.
I purchased this two years ago. I actually have two of them. Part of my purchase was based on positive feedback from the postings below. Problem:  This plate is NOT flat. The slight "crown" is enough to mess up any precision work. You cannot do any type of miter work with this plate. You can forget about rail and stile doors. Just comes out sloppy and you end up wasting material! Furthermore, the plate can sag with a "memory" effect over time, especially if a heavy router is left on the table. The rings are a bear to get out and don't leave you with a lot of flexibility for the size of hole you may need. This is a mediocre product. It is relatively inexpensive, but will be wasted money if you buy this and get a flat (e. g. al  aluminum) plate later on. Probably okay for routing that does not involve joinery or a great deal of precision.