It depends.
The Steve Hoffman forums are a good resource, for the most part.
You can also look up the pressing on Discogs and see what kind of rating a particular pressing has and if there are any comments about it. This can be less helpful, as you don't know what it is exactly they are "rating" - the sound quality of the pressing, whether they like the album itself, or something else.
It's also not uncommon to see a mixture of feedback on the quality in comments/reviews with one person thinking it's the best ever and others complaining about surface noise or other issues.