I think it is hit and miss. I find alot of the problems with some of remasters especially the non-audiophile pressings of remasters,is that they tend to lack the quality that you would expect from a remaster. For example I purchased reamasters of PInk Floyd in the last year or so and have found the quality of the vinyl they have been pressed on very poor. Slight warps, noisy background noises, pops etc etc. On the other hand I have remasters that have been far better than the original for example many of the releases on the SPEAKERS CORNER label.(eg Joni Mitchell - Hissing of Summer Lawns) This particular label, I do consider to be an audiophile pressing. So I think it depends on the company that is reissuing the represses and who is actually doing the remastering. I have some cheaper 180G remasters released by a company called Rhino and have found them to be rather inconsistent. I have noticed troughs or small indentations on the surface that are quite audible. Early pressings if they are in top notch shape are great to have. Almost never warped, pressed with 180g to 200g vinyl and are comparable to a vintage wine.
