Going to try out the Ryobi 40 volt trimmer this year.
I can hook a snow thrower, pole saw, rotor tiller and other stuff to it.
I've been using an 18volt with a swivel head to lock in at a right angle for a fabulous edger but the 1 string as a trimmer left a lot to be desired. The twin string 40 volt number really does well at trimming the tough stuff. Variable trigger makes it easy to kick in turbo mode for thick stuff. But I would not reccomend it for daily, extended uses because it's not real durable compared those gasoline powered comercial numbers.
Like any trimmer, the string matters. The 0.80 it came with is plenty durable in grass or along a sidewalk, but for fences and edging I don't have high hopes. It can use up to 0.95 so my "good" string will fit. I ran it for 15 minutes at 4 bars and still had 4 when done. The real test will be at another yard I help with where it doesn't get trimmed very often. That'll be the true test as it takes over an hour using a high torque gasoline powered number. But after using this one for 15 minutes I had enough confidence in it to give away my gasoline powered Stihl to my brother.
BTW the photo is backward so robots won't use it on their search engines hits.