Background: My 10+ year-old Ryobi dual-line auto-feed line trimmer Gave Up The Smoke after many years of service. I needed a corded trimmer that uses 0.80" line because that's what the Ryobi used. The "Hunt": I went to my local Sears and went to the Lawn and Garden Department. Imagine my surprise when I saw this unit on display! It Looked Like the Ryobi unit (motor handle, that is!), it was a corded unit, and the box said it uses 0.80" line! I "detached" the string head unit and examined the "drive system" - it sure looked like what the Ryobi used! On these "merits", I purchased the unit and went home. The "Test": I brought the unit home and unpacked it. After attaching the handle and detaching the string head, I made ready to attach the Ryobi string head. Sure enough, the Ryobi string head DIRECTLY ATTACHED to the motor shaft! I then attached a line cord and immediately started using it! Use impressions: 1) The motor is VERY strong, and, with the Ryobi head attached, it "wacks up" the weeds like a champ! 2) I do like the motor shaft being "notched" to prevent the adjustable handle from "turning". 3) The aux. carry strap is a GREAT TOUCH to reduce User Fatigue. "Nit-picks": 1) The supplied string head is not well designed! I could see myself changing lines every couple of minutes (i.e., carry a large "wad" of cut strings with you!). 2) It would be nice if the power switch could be "locked on" (though I see the "safety logic" in its' existing design!). 3) The drive motor is a little "loud", however it's no louder than what I had before (wear ear plugs if needed!). Summary: overall, this is a great string trimmer to have if you don't want to mess with a gas-powered unit or carry a bunch of batteries with you. Yes, you do need a long extension cord (#16 wire MINIMUM), but you never have to worry about batteries dying At The Wrong Time or "suddenly" running out of gas. I would give it a 4-1/2 star rating if I could!
Bought to replace 8 year old Ryobi Expand-it bump head with burnt out motor, and wanted to try fixed line head. Strap clip is far too high up the shaft, creating poor balance (and too-long strap) so strap is entirely useless. Auxiliary handle is flimsy and can't be tightened enough to not slip around on shaft. Needs hi/low speed switch, as hi-only is too much power for some tasks. Turns out fixed line head is a VERY bad and wasteful idea--when just a little string wears off, must replace entire 12" (unlike a bump head). After a very short time using, the red line lock button on the head caught on something and broke off, destroying the head--and there is no extra "cartridge" or whatever, like the description claims there is. The motor is very powerful and my old Ryobi bump head shaft and aux handle fit, so that's good, and at least makes it useable for me--though for slightly more than a replacement Ryobi motor section would have been.
Aggressive and powerful line trimmer. Makes short work of thick, heavy, and stubborn weeds. Once I had the shoulder strap properly adjusted, it was simple to maneuver. Changing the line is effortless, but keep a couple in your pocket while you work if you have very thick weeds or are clearing a large area. Very happy with this unit.