I started serious photography with a Nikon F and a Nikon FTn in 1973. They were as solid as any camera I've ever used. I liked the F2 better, mainly for the hinged back and motor drives but there's nothing wrong with the Nikon F. I used them alongside F2's professionally for a number of years. Both my early F's were stolen shortly after I had NPS service them.
I didn't check eBay for what lenses you bought. The early lenses I used were the 50/1.4, 35/2.8, 85/1.8 and 24/2.8. The 85mm was sharper than a 90mm Leitz Summicron I owned at the time. Neither the 50mm nor the 35mm were as sharp or contrasty as the equivalent Summicrons but they both had a certain "look" that I still find attractive in negatives I shot back then and still print today.