So, my first reply here on FFG. Hello!
Well, when I bought my X-wing ships, I noticed straight away that my Y-wing had the backparts of its engines a bit out of alignement, but equally, so it doesn't look that bad (still going to fix it soon).
My X-wing ships had bigger issues. 2 of the engines on all of the X-wings were missaligned (broke them of and made a few adjustments and reglued them on). Then I had a second issue. When looking from the side, it seemed that the guns/wings were pointing downward! It didn't please me at all, so I had to litterally brake of the wings and then re-align them, pin them, and then glue them back on. This didn't take more than an hour to fix all of my 3 ships, but still. I've been looking at other pictures on the web about the X-wings and all I've seen that most of the other ships have been assembled better, so it might have been a bad batch I had at the local store, due to a clumbsy worker who glued the wings on badly (or is it automated?). But I know how to fix it now, so the minor issues won't disencourage me from buying more.
I've been playing GW games for a very long time now, and converting has been one of my stronger sides in that hobbyrange, so doing a bit of re-modelling here wasn't that much of troubble really, but I can understand that not everyone thinks it's easy. Specially if you haven't done it before, so I understand that some might be upsett that their models aren't looking good.
When cocidering the amount of detail and good paintjob they have and I've seen horrible pre-painted minies on other games, these are actually good quality. I could of maybe awoided the defects by comparing a few of the ships, but I was in a hurry and so had to just scoop the ones I wanted quickly. More time given, I might have spotted the errors and might have been able to change to other less defect ones, if there were any. But I'm not dissapointed at all to be honest, they're pre-assembled and pre-painted and I know that that's never going to be as good as when you make it your self.
With that said, all in all, I think these miniatures are on the top notch part.