Shanta, I have a Sensa and like it a lot so that's not a bad choice at all. Do have a look at the Guilia though, I think the Calabria is a bit "faux-aero" (i.e. it looks aero but there is no evidence to suggest it is) so went with a [url= http://www.merlincycles.com/sensa-giulia-custom-road-bike-ultegra-2x11-compact-2015-74098.html ]Guila [/url]instead and saved a couple of quid.
Make sure you budget for some new tyres (the supplied are heavy, wire beaded jobs, £50 gets you a pair of [url= http://www.ribblecycles.co.uk/sp/road-track-bike/tyres-twinpack-deals-veloflex-master-folding-twinpack-2/velxtyrf302 ]Veloflex Masters[/url]) and some fresh bartape (the supplied is paper thin) to get the finish top notch.
That Guila in the pic looks nice. What the cassette ratio? How tall are you lunge and what size did you get ?
Also what the rims like?