I disagree. I alternate between Harry's 5 blade disposable and a classic safety razor (Feather blades and Merkur long handle). The disposables make for a faster and closer shave. It's also much harder to nick yourself with a disposable cartridge.

The advantage of the safety razor is that it's much, much cheaper, and it doesn't lift whiskers like a multiblade setup does, so it's not as close a shave, but it's gentler on your skin. Also, it's somewhat more enjoyable as a process to use a safety razor (once you get good at it).