My BR600 is toast after 8 years - need to dig into why (carb or engine). But in the meantime to manage 0.7ac of leaves from 3 sided onslaught of woods, I bought a new Husky 350BT. I would have been better off to buy two, new 350BTs, shelved one for 8 years and used the other one and tossed it out. I think STIHL's older 1985-older products were well-made and sturdy - I think the new 4-cycle and other models are less reliable. The other item is - parts. My BR600 parts orders are months in and no word if they'll ever be filled. Three New England dealers told me the secret - STIHL parts are very hard to come by since they bet the farm on Ukraine and China as sourcing locations for all parts except the base metal parts made in Germany. They all have service equipment in that cannot be completed due to one item...parts. Two of the three dealers that do basic repair are telling customers to come back in Mar/April 2023 for service.