Good first bike?

Im looking to buy a first bike but I admittedly know very little about what’s a good deal. Someone is selling a bike that I feel could be a good purchase but I want to make sure. I pasted the info below.

57cm Diamondback Podium Equipe in excellent condition with low mileage. Full carbon frame and Ultegra Di2 drivetrain

Frame: Full carbon 57cm size

Fork: Carbon DB fork with carbon steerer tube and FSA headset

Wheels: Superteam carbon aero rims with brand new specialized tubes and continental gatorskin 700x28c tires with life left in them

Bars: Forte carbon with new Cinelli bar tape

Crank: Carbon SRAM Red 50/34

Drivetrain: Shimano Ultegra Di2 6870

Brake Calipers: Shimano Ultegra

Rear cassette: Shimano Ultegra 11-28

Saddle: Bontrager Race Lite

Stem: Bontrager Race X Lite