The reason you are getting negative reviews or reviews from people who say "don't choose eD" is because eD HAD a bad history. Back in the day, the owner was known for ripping customers off.
However, they've changed their ways of business now days.
I've purchased $900+ from eD in early 2007 and $500 from eD just a couple of months ago and there has been no problems with them. All of my eD products are working very nicely.
So, from personal experience with them, they're a reliable company.
It is also true that their eD amps are underrated, so that's a no brainer to why go with eD amps over the Orion.
The warranty on the eD amps are nice too! Plus, it only costs about ~$20 to get it shipped to them if there is ever a problem.