I use Orly Bonder and buff my ridges because I've got seriously thick and ridgey nails and the Orly ridge filler base coat didn't really seem to help much. Bonder does a good job keeping the dark greens and reds from staining but it's hard for me to say whether it makes my polish last longer because no matter what I do base/top coat wise, I'm hella hard on my nails. Also, I usually change my polish every couple of days, so wear isn't really an issue.