Hi Mel,
We have had a pair of 25 x 150 Fujinons on a motorised Sky Rover Star chair as part of our 3RF equipment for well over 10 years. (See Below).
These have fixed 25x eyepieces. These are a very high quality instrument (over $15k more than 10 yrs ago with the chair) and great for observing the rich Milky Way clusters and nebula, the Magellanic Clouds and the like. I have spent many hours in the star chair. As high a quality as they are and as good as they are, for observing the types of targets they were designed for (low power wide field), with the fixed power eyepieces they just don't have the versatility of a 6" APO refractor on a tracking mount with GOTO and interchangeable eyepieces.
Consequently as an all round visual instrument I would choose a 6" APO on a high quality tracking mount with GOTO every time. The added bonus of this setup is that it would also be exceptional for astrophotography, if ever you head down that path.
Cheers
John B
http://www.ozsky.org/Gallery/OzSky2014Fujinons.jpg