i bought 2 last season. one had to have the carb replaced, the other, the engine locked up on it. echo replaced the carb on the one. wouldn't replace the enging on the other. said it was a maintenance issue with our company. it ran for about 3 months and we have a daily, weekly, and bi-annual maintenance program for all our equipment, including the trimmers. my partner, who runs the field operations, told me (i run the administrative end, and supervise the operation of 1 crew) they need a trimmer. i said great, redmax or shin? he said 'echo, the company has fixed the problem with the carbs'. i said are you sure you want an echo? he insisted. i got one, srm-260, just like the 2 last year. this morning, i was at the shop, as the crews were doing their morning equipment checklists, one of the guys brought me the new trimmer. 'it's not running right'. the exact same thing as the two last year'. start it up, runs like crap. after it starts running smoothly, 1-2 mins., it has very low rpms. that is 3 in a row. last echo for us. ever. by the way, we have been using echo for about 13 years and never had a problem until last season.