New Bike

After visiting the bike shop today and speaking to a guy about a possible chainset upgrade to 11/28 to aid me over the hills Im thinking about a new bike through the cycle to work scheme, my bike was great to introduce me to road biking and a good entry level but now feel I need something a little better, heres what im thinking

Its has the 11/28 ratio im looking for in the hills and was voted the best bike that you can buy for under £1000, will have a think.

Specs Below

FRAME
Sizes S(46.5cm), M(50cm), M/L(53.5cm), L(55.5cm), XL(58.5cm)
Colours White / Blue / Black
Frame ALUXX SL-Grade Aluminium
Fork Advanced-Grade Composite, Alloy OverDrive Steerer, 1 1/8"-1 1/4" Bearings
Shock N / A
COMPONENTS
Handlebar Giant Connect, 31.8
Stem Giant Connect
Seatpost Giant Connect Composite
Saddle Giant Performance Road, Men's
Pedals N/A
DRIVETRAIN
Shifters Shimano 105, 20 speed
Front Derailleur Shimano 105
Rear Derailleur Shimano 105
Brakes Tektro TK-R540 Giant Specific, Dual Pivot
Brake Levers Shimano 105
Cassette Shimano Tiagra 11x28
Chain Shimano Tiagra
Crankset Shimano R565 34/50
Bottom Bracket Shimano, Press Fit
WHEELS
Rims Giant P-R2
Hubs Giant Sealed Bearing 24/28h
Spokes DT Swiss Competition
Tires Giant P-R3, Front and Rear specific, 700x23mm