i use two different razors.
i have a braun series 5 electric which can do a good job provided i shave regularly (like within about 24 hours) but if i forget and it grows more than that, it can pull and be pretty painful and annoying.
that is when i break out an old gillette double edge my dad gave me when i was a kid to play around with (of course there was no blade in it then)
it took a little while to get used to using it and would start by clearing the easiest parts of my face and go back to using my mach 3 for the more difficult spots.
but after a bit, i got truly comfortable with the double edge and it works just as good as the mach 3 as far as i am concerned.
except that for the cost of a single mach 3 cartridge, i can get a thing containing 10 double edge blades (3 bucks) and can probably get an easy 2 months or more of everyday shaving.
i don't see why i'd ever go back to using the mach 3 or the even more expensive fusion blades which go for about 4 bucks each i think.
sooooo much more economical as the more 'modern' razors are expensive as hell to use.