I've used this product only 8 min, that's the only reason I cannot assign 5 stars.
Based on just this amount of time, I see it blows about 3 times as much air as the old Toro Ultra Blow/ Vac I've used. That's without even using the 'turbo' function, using only the trigger.
Speaking of trigger, I need to test it some more and see if I'm using it wrong. My trigger finger was stiff, only a little sore, for 2 days. Perhaps that's why they have that trigger lock - which i did not use? I'll use the trigger lock next several times and see if that was my mistake.
The weight is easy for me to handle. Well, at lest my 64 yr old carcass handles it easily; let's see how I do at 70. I'm guessing that's when the strap will come in handy.
I hope I get to edit this review after a year of use. We know that's when you really know a product.