I'm real big on Echo just because my 10 year old pb403 blower and srm210 trimmer still crank first pull (backups) Also just got the pb770 (most powerful blower) and picked up their handheld hedge trimmers last fall hc150 ($300) Never have had 1 problem with any of it.
The equipment that's 10 years old hasn't had as much as a spark plug change. I still have guys trying to tell me Echo isn't commercial grade. Sigh. Honestly know nothing of shindawai hedge trimmers but you're golden with Echo.