I usually buy big expensive razors to keep in my bathroom but I do also buy a bag of Single blade razors for a quick shave and then toss it out. Either way they both do the same job it's just the durability that is the main difference. Personna blades are good to buy when you are going on a road trip or a quick little vacation.
One of my friends has used these razors before, because she has super sensitive skin. And she loves them! They didn't break her skin out in a rash like some razors do, so I would highly recommend it for sensitive skin!
These work about as well as you would expect a disposabke razor to work. They get the job done. I dont usually gwt nicks so these work for me and they are on the cheaper side. Those that usually do get nicks may nit want these due to there not being a lubercant strip at the top of the razor.