As far as performance goes, by all accounts the II sucked. I'm just talking esthetics - the II looked pretty good to my eye, even better than the 1.
I was born in 1967 and I knew what a mustang was some time in 1977 because an old lady up the road drove a 1965 (give or take a few months) Mustang past my house fairly often. I was about 13 yrs old when my dad said he'd be bringing home a new (to us) Mustang after work. That evening he drove up in a 1972 Mach1. I thought it was the ugliest thing I ever saw and asked where's the Mustang?!!? As an adult I know those are bad ass muscle cars and I'd certainly own one, if I could afford it, but as a kid I couldn't see the Mustang connection. I don't know when I realized the Mustang II wasn't like that old ladies car but to me it's a fine looking car that looked like a Mustang should.