I just bought one of these from amazon about a month ago. I needed one to clear two spots in the woods of green briar, multi flora rose and rasbery bushes. I use the pointed metal blade and it really cleaned house. Iam glad I bought it. I don't know why but mine came with 2 24 volt batteries instead of 21 volt. I haven't tried the saw blades or the string trimmers but I am sure they will work well jusding from the performance of the metal blade.