My daily-use razor is the Merkur double-edged safety razor, which works very well for me - far better than any cartridge razor ever did. It's main drawback, of course, is that you can't take the blades on an airplane. So I use a cartridge razor for travel and for quick shaves at home.
I was drawn to the Harry's razor because it looked to be a solid handle (rather than the cheap plastic ones from Gillette) and the blades were a reasonable price. It lived up to my expectations. A notch above Gillette in quality and a better price. I just wish they hadn't felt the need to put four blades in it - two is more than sufficient.
My favorite non-safety razor of all time is the innovate, but unfortunately discontinued, Avid 4 Travel Razor: http://www.moderngent.com/avid/avid_razor.php