I have an 06 Fusion 600. I bought it 2 years old with 200 miles on it. I think it suffered from the neglect of the prior owner. It's a great trail sled. Great in the twisties or on the bumps. I think the suspension is great. I like the seat better than the one the IQs came with later. I like the look of it especially since there aren't that many out there.
This sled has been expensive for me, but mostly because I didn't do my homework and have the common problems addressed. First day riding it, the gas tank leaked (recall). 2nd day riding it, belt blew, and it continued to eat belts regularly. That took a while to fix but it ended up just being poorly aligned and I think it is now fixed. 2nd trip, the voltage regulator failed. Again, it's a common problem and they have an updated part that is inexpensive to replace, but it was a hassle on the trip because I lost my headlights. Next trip, the carb boots failed causing the complete engine to have to be rebuilt. Again, that turned out to be a very common Polaris problem, just an expensive one for me. Nothing that has broken on this sled should have been a surprise to me if I had done my homework and had it checked out. Just typical 1st year sled problems during that era when they rushed **** out the door to try to keep up with Doo.
I'd buy the sled again for the right price, but I'd keep my eye on the common problems. I would rather pay a little more and get an IQ a couple years newer, when they worked all the issues out.
Bergstrom skegs and spacers fixes the heavy steering problem. The track kinda sucks too for my use, but others might like it.