I have a pretty good basis for comparison since I have a 3.0 hp Hitachi and this is my third Porter Cable router. The other two PC 2-1/4 hp which I use for surface routing and a 1hp Bosch for light routing. This model 7518 PC motor replaced the 2-1/4 Bosch under the table. The latter lasted for about 4 years before burning out.
I easily felt the difference of the extra hp on the PC router. It performed like I have not seen with the Bosch router; of course, the Bosch had 1 hp less. I think I will really enjoy this 7518. Only reason I give it a 4 star rating is because it generates a lot of heat. To alleviate that I use the dust collection underneath in addition to the dust collector at the Jointech router fence. The Hitachi 3hp router just won't work under the table but it is also a very powerful one.