Free is good.
But 4 blades and a vibrator?
I'm still using the same razor I bought probably 30 years ago. Heavy, solid brass, uses a 2 blade cartridge. Often shave in the shower with no mirror (hand can still find my face with my eyes closed).
I guess I'll still be using that razor when the newest ones have 6 articulations, 24 blades, GPS, a Pentium M processor, a nano V-8, and an MP3 player that serenades you with the company jingle.