It depends what kind of hedges your gonna cutting. I have a echo 1500 gas trimmer and a little wonder 30" electric trimmer. The gas one i use for thicker cuts and small trimmings. The electric one i use for big trimmings since its lighter and less noisy. Later
I have used both Echo and Tanaka. I think the bigger Echo's are better than tanaka's big ones, BUT tanaka has the better smaller ones. I like the new swivel handle on the tanakas. They make short work of bushes and blackberry bushes.