I flew a 6-260 for awhile, lots of years ago--belonged to one of my students, and we traded my using it for his instrument lessons. Very stable, hard to overload, but pretty gutless--neither very fast nor much of a climber. I recall one particular flight, loaded to the gills with my family and luggage for a Thanksgiving visit from Laramie to Durango, very close to gross on take-off. I think climb-out from Laramie was between 200-250 fpm. Had to make a potty stop at Alamosa, and because we'd burned off some fuel, the climb-out from there was somewhat better, though nothing to write home about.
It had been clear leaving Laramie, but soon after take-off from Alamosa, we were in the clouds and some snow. On arrival at Durango, there were 2 commuter aircraft ahead of us. Both went missed and diverted to Farmington. I think because we were approaching at a much slower airspeed, we had no trouble shooting the ILS--the runway was easy to see about 50-100' above DH. We were the last airplane in for several days, as we were coming in at the beginning of a major snowstorm.
I enjoyed the 6-260. It wasn't what I'd call "fun" to fly, but it was a good, reliable, solid airplane. By regularly switching tanks to maintain balance (it has 4), it was easy to trim for hands-off. It didn't have an auto-pilot, so being stable and predictable were good attributes. Power off with full flaps, it'll sink like a rock, but it's easy to fly.
Cary