Thinking of switching back to canon

I moved from 7D to Nikon d800 and it's my 2nd D800 first one had left focus
Problem and same with the 2nd one. And top of that I miss feel of the canon.
I didn't invest much in Nikon just D800 and 24-70 f/2.8.
Thinking of buying 5dmkiii with kit lens as I'm hobiest
I don't make money from photography.
Will I be happy with mark III for landscape and city scape?