A couple weeks ago my 1992 Echo 2501 string trimmer started coughing and cutting in and out. I didn't have time to fuss with it. Rainy day. Went to buy a new one. This old trimmer was my ONLY trimmer since 1992. Never let me down. Replaced a few primer bulbs, maybe 8 or 10 sparkplugs, and one fuel line kit. Had the original head on it until last fall! I decided on a new 280S. It has the new trigger throttle. I went with the 280 over the 266 for two reasons... Larger engine Larger fuel capacity LIKES: HUGE decrease in Noise, Vibration, and Harshness (NVH) Decent power Easy to wind head Head only taps when you want it to Head only advances a small amount of line per tap Smaller guard is nice DISLIKES: Not all that much lighter than my 2501 Fuel fill is in rear instead of side Engine is LARGE Trigger Small fuel tank! Grabby higher RPM clutch As far as weight goes...it is slightly lighter, and I could have easily gone with a smaller trimmer for weight. Not a big deal, just thought because everyone says how much lighter the newer trimmers are, when my 21 year old holds it own. Fuel fill...I fuel up on my Trimmer Trap. I rotate them and pour in. With this rear and vertical cap, it makes things a little harder. As far as capacity...This is the highest capacity tank they make, and it literally feels like 1/2 the capacity that I'm used to on the older one. You'll see it in the pics, and you'll catch it on branches...this engine is HUGE! TRIGGER...I was on the fence about the new trigger. I'm often an underhanded holder and I used to actuate the throttle with my pinky finger. This trigger is VERY stiff and sensitive...I'll get used to it, but I never had an issue in 21 years with the old throttles. This brings me to the clutch. I'll admit it. The clutch on my 2501 must have been permanently locked. I could feather the RPM's down and the head still spun. (was nice while wearing shorts!) This new one you need almost 1/2 throttle to engage the clutch. Then it jams on , but you have to keep the throttle up or it almost stops the head. The front handle is like my suspension seat on my Lazer. You cant feel the vibrations and it's soft and pliable. Very nice improvement! Overall, I guess I'm happy with it. I'm going to see about switching over to the older trigger, or see if it can be adjusted somehow to be easier to operate. The safety on the top of the throttle is a joke and a PITA as well. One more thing to worry about as I underhand it.