I had a G35 coupe daily driver along with my NSX for several years:
It was certainly a fun car with plenty of power. And it had a wonderful intoxicating sound even from the factory exhaust. As for the styling... in my opinion, with the aftermarket springs, drilled rotors, and wheels plus the limo tint it was drop dead gorgeous and got more positive comments than my NSX.
The downsides included the econo quality interior materials and lackluster fit and finish. The factory navi system was "gee whiz" impressive with the screen that retracted in and out of the dash but it was MISERABLE to use with the WORST UI on the planet. A $199 TomTom or Garmin handheld were far better than the factory G35 navi. Perhaps the nail in the coffin was that the local dealer was horrible even on the best of days. The service charges for what they called routine maintenance that somehow occurred at much shorter intervals than the manual listed were complete highway robbery and always came with several additional surprise "recommended" repair charges when I would go to pick it up. Each visit to the dealer would incur many hundreds of dollars being flushed out of my wallet!
In the end, having moved to MI from FL and owning two RWD 2 door sports cars was not ideal for my daily commute. The NSX lives in the garage for nearly 6 months out of the year so my DD needed to be something that could take the inclement weather without a problem. The G35 coupe does a decent job with Blizzaks on but I traded it in toward an SH-AWD Acura RL and couldn't be happier! Having owned 3 Legends in the past (I still have a '94 LS sedan in the garage) the 3rd Gen RL is the logical next step. The fit and finish and techno gadgetry is phenomenal and the SH AWD is outstanding in the snow and rain.
BTW, my wife still drives her Diamond Graphite Infiniti G35x AWD sedan... The exhaust note is vastly different between the sedan and the coupe but the navi is still the same...
And worst of all we still have to go to that same crappy dealer...
Of course I want my next DD to be the new Aston Martin Rapide sedan. The wife has given the green flag as long as I sell off two other cars first... decisions... decisions...