I've had my WoodRat for 6 years. You asked a few questions so let me go step by step.
It would be better having a Router Boss. There are some quality control issues with the WoodRat that resulted in poor results for some users. Maybe not all. The RB was engineered to go around those flaws, and offers some real 21st century improvements. Go to this English website to see owner comments on both types equipment --- Visitors from
The manual and training on the RB is a real leap forward.
On either machine, here's what you can do well.
Mortise & Tenon
Dovetails --- regular, half-blind, full blind
Tongue and Groove
Edge forming (with some limits to the size of the bit used)
Vertical Raised Panel work
Finger Joints (my favorite)
What isn't commonly stated is the safety afforded by both machines. And dust collection is pretty good on the WR, and even better on the RB. Speed on many operations is marvelous. On my first try, I banged out 9 drawers with dovetails in about 2 hours. I was comfortable with the machine, but had good knowledge of it. My experience at that point was limited to M & T and Finger Joints.
You can view demo videos on both machines. Cost, with tooling will be over $1000. I still have a router table and need it for a few operations. Mainly edge work on big sheets and with cutters more than 2 inches.
Here's the sites with videos of each. The Amazing WoodRat Makes Any Woodworking Joint The Craftsman Gallery, chipsfly.com