Yoda,
I loved my 359 and it killed me to see it crushed. However, after picking up the 562, I'm happy I have it. It is a bad mamma jamma. I made two cuts with it at the shop before I left and honestly couldn't tell much of a difference from the 359. I was ready to be disappointed. Then I cut the same 3 ft diamter log that crushed my saw in 45 minutes and had it loaded and pulling out. I have since dulled my 24 in chain and run several tanks of gas through the 562 and it has been AWESOME! This evening I loaded my 3/4 ton ford as heavy as I could twice from 4-6 pm. That was cutting and loading by myself. Some of the logs I loaded were 200+ lbs each. That includes drive time 6 mi each way and unloading.
Simply put, it just cuts so much faster than the 359. There are a few MINIMAL downsides. It runs through the gas a lot faster than the 359 but to me is more efficient b/c it cuts so much faster. Second, when the chain goes dull, its dull. With the 359, I could make some "extra" cuts after the chain started dulling. Now, when the chain starts getting dull, the saw won't pull it very well. I'm goin to put that same chain back on and try on a different log and see what happens. It may have just been the hard white oak I was cutting. I don't know.
Having said all of this, I don't know that I would pay 750 for the saw over the 550 for the 359. There's a big difference but I don't know if there is a 200 dollar difference. Just my opinion. I guess if this saw lasts longer than my 359, it will be worth it.