For me it's one of those things that really depends. HD reskins that mess with the art style too much, or get too ambitious to work with the geometry at all, can be a mess. But sometimes it can work well, when the old textures are just grungy enough to look dated on a modern screen, but not so grungy that painting over them involves a ton of reinterpreting. The good remasters just make the game look like you thought it looked already