Hi, and yes, it will work with "Universal" attachments. All are easily mounted and secure. We have a Ryobi and a Toro Power head. Personally, I prefer the Toro; it's easier to start and it stays running my Husband is happy with the Ryobi. We have a pruner attachment, tiller attachment, string weed eater and edger - all work just fine. Heads up too....if you have loads of really heavy duty work to do - go with Echo, but their items are all al la carte - nothing universal with them, but the Echo products really have beef!
Overall, we do just fine with our universal attachments on our 1+ mixed acre in the woods. We cut down wild vines, black berries, and for the heavy duty stuff, like small saplings or really tough weeds like burdock, we also have the Shakespeare Universal 3 blade cutter #it attaches to the string trimmer assembly#. The little 3 blade cutter really charmed me and I use it instead of the bump string trimmer.
Personally, I think you'll be happy with the attachments. You get a wide variety of machinery for very reasonable money that gets the job done.