A fibre connection makes use of light impulses to carry its data, instead of electrical impulses, as the copper lines (ADSL) do. The light impulses bounce along the inside of thin glass fibre tubes. As fibre optic broadband is Internet at the speed of light, it is therefore, much faster allowing for upload and download speeds to be greatly increased. What this means is that your downloading & uploading of files to for example Dropbox, Office365, OneDrive, etc. will be so much faster than ADSL. Fibre installed at your house will have the capability of delivering services of up to 1 gigabyte per second if you want… THAT’S 1000 TIMES FASTER THAN A 1 megabyte ADSL LINE!!!!
However, remember that your speeds will be limited to the package that you select from your ISP.