I had a Halfords racer about 5 years ago. The thing was coming apart after 2-3000 miles. The way they welded the frame together meant is was not all that strong. Also the wheels they did not hold tyres too well, I had a number of punctures from the beading coming lose. Awful bike. £100 pound more would have bought a decent Giant or Trek with a decent frame. The top end of the Broadmans are an effort by Halfords to shake off their shoddy image, perhaps they have improved the quality of their cheapest bikes but you will more likely get something a whole order of magnitude better second hand. If your lucky or know what your doing you might even get a Tiagra or 105 groupset rather than a Sora.