This unit is great in a small shop. It is very important to keep pressure on the guide stop where it rides on the guide rail. If you do not and are not careful the router can tip off the rail while the guide slips from the track.
Careful setup is needed to prevent damage to the guide rail by the router. Guide manual lacks clear precise directions. Like all tools one must take the time from the beginning to learn and practice with the tool before you use it on a project.
I bought this thinking of all the great ways I could rout lines in wood and I end up using the dado set on the table saw or a router table 9 times out of 10 before I get this setup out. However, when nothing else will get it done without a complicated setup, this is the way to go.