I just ordered the 2013 Diamondback Overdrive 29er (red) on Amazon. I was shocked to see the bike priced at $440 so I bought it right away with no hesitation as most places want $600 for it. This is my first mountain bike in years. I want to know if this bike was worth me purchasing and whats your opinion on this bike overall? Also, what are the weaknesses this bike has and what parts would be ideal to upgrade to make this bike more solid? Below is a stock image and specs pulled off directly from the official diamondback website.
Frame: Overdrive 29" Butted 6061-T6 Aluminum w/ Formed Top / Down Tube, machined headtube, forged drop outs w/replaceable hanger, disc only
Fork: SR Suntour XCT 100mm travel, 28.6mm stanchions
Cranks: SR Suntour XCT 22/32/42t
Bottom Bracket: Sealed Cartridge
F. Derailleur: Shimano TX50 dual pull, Top swing, 34.9
R. Derailleur: SRAM X-4 8spd
Shifter: SRAM X-4 trigger 8spd
Brake Levers: Tektro Alloy w/ reach Adjust
Brakes: Tektro Novela Disc w/ 6" Rotors
Cassette: SRAM PG-820 8spd
Cassette (11-32t)
Rims: 32h Weinmann SL-7 Doublewall
Tires: WTB Wolverine Comp 29x2.2
Pedals: Wellgo Alloy forged, CNC MTB
Handlebar: DB Lazer Series 31.8mm low rise
Stem: DB AL6061 Ahead 7° 31.8mm
Seatpost: DB Lazer Series Micro Adjust 30.9mm
Seat: DB Race saddle
Headset: Integrated FSA Drop-in ACB upper, Zero Stack lower internal cup and cartridge bearing, 1 1/8"
Chain: KMC-Z82
Hubset: (F) 32h SL-7 Alloy w/ CNC Disc Mount, (R) 32h SL-7 Alloy Cassette w/ CNC Disc mount
Spokes: Black 14g Stainless Steel
Grips: DB4L 135mm Kraton

Frame: Overdrive 29" Butted 6061-T6 Aluminum w/ Formed Top / Down Tube, machined headtube, forged drop outs w/replaceable hanger, disc only
Fork: SR Suntour XCT 100mm travel, 28.6mm stanchions
Cranks: SR Suntour XCT 22/32/42t
Bottom Bracket: Sealed Cartridge
F. Derailleur: Shimano TX50 dual pull, Top swing, 34.9
R. Derailleur: SRAM X-4 8spd
Shifter: SRAM X-4 trigger 8spd
Brake Levers: Tektro Alloy w/ reach Adjust
Brakes: Tektro Novela Disc w/ 6" Rotors
Cassette: SRAM PG-820 8spd
Cassette (11-32t)
Rims: 32h Weinmann SL-7 Doublewall
Tires: WTB Wolverine Comp 29x2.2
Pedals: Wellgo Alloy forged, CNC MTB
Handlebar: DB Lazer Series 31.8mm low rise
Stem: DB AL6061 Ahead 7° 31.8mm
Seatpost: DB Lazer Series Micro Adjust 30.9mm
Seat: DB Race saddle
Headset: Integrated FSA Drop-in ACB upper, Zero Stack lower internal cup and cartridge bearing, 1 1/8"
Chain: KMC-Z82
Hubset: (F) 32h SL-7 Alloy w/ CNC Disc Mount, (R) 32h SL-7 Alloy Cassette w/ CNC Disc mount
Spokes: Black 14g Stainless Steel
Grips: DB4L 135mm Kraton