Hi Fuso,
Yes, the ED Andrews EP's are quite good, just so you can compare, there is little difference between my ED 12.5mm ($69) and my Pentax XF 8.5mm ($230). The difference is better quality RIGHT to the edge with the Pentax, but for a difference of $160, its VERY hard to pick it.
My ED 12.5mm is often the first and generally only eyepiece I put in my 12" dob as it gives me 120X magnification and is a ripper of a cheap eyepiece, certainly leaves the standard Skywatcher and GSO plossls for dead. I end up scanning around the skies all night with this one in, and if I want to get any bigger, I use a barlow. I also have a Baader Hyperion (2 in one as its a 13mm and when you take the front off it becomes a 26mm) and this is better than the ED but again, not by much and this costs over $200 as well.
You wont' really find any reviews on them as they are a generic eyepiece that Andrews badges (similar to the York Optical ones), but take my word for it, they are a steal for the money.
PS. oh WAIT, I just clicked your link and saw these are the NEWER ones which I am not sure of, the ones I have are on the
General Accessories page and only cost $49!!! This is what I am referring to and they are even BETTER value now than when I bought mine.
Cheers
Chris