Have you seen this review in Bike Radar?
http://www.bikeradar.com/gear/category/bikes/road/product/review-dawes-cycles-giro-200-09-34873/
Someone ought to tell the reviewer that nearly all cycles had frame tube shifters, he was probably still in short trousers then, and if he's like a lot of HiFi reviewers then if its not the latest highest spec doo-dad then they will slag it off.They don't like it do they? That review looks a bit out of date, as the current model has bar mounted shifters. Mind you, my confidence in the sanity of the reviewer was undermined by this about the down tube shifters "once you get used to finding them without looking or sticking your fingers in the front wheel" WTF? You'd have to miss by a looong way to do that.
Anyway, I have no direct experience but if you're on a budget it looks very basic and may be OK but is unlikely to be very comfortable for longer (> 3 hour) rides. Pushing the boat out a wee bit more would net you the very well thought of Triban 3 from Decathlon.
They must be trying to get rid of the last few now it's been replaced by the 500 as it's only listed in the 48 and 51 cm sizes (51 being currently out of stock) - an absolute bargain if that's the size you need.sorry again guys but the triban 5 looks better and its only 329 pounds