FYI just because you can get the blades from walmart doesn't mean they are the best option out there. Not to knock on those who like them, i'm just saying don't think a shave is 'good enough' because the blades are easy to come by. There are some companies that sell sample packs where you get 5 blades of various kinds. You'll be surprised at how much difference the type of blade can make.
FYI didn't say I prefered them. I keep them around for back up and then only use them for a couple shaves then toss it. There's a brand I get from the shave shop I prefer. I was only helping an OSA'er out that likes them. I'm not a "razor snob". If a guy likes persona, fine with me.