Baz - it is only for one year, yes. It is meant to be "any 12-month period" rather than "one academic year", but despite registering in late November we still only have insurance coverage till the end of July - sorting that out with Young Enterprise at the moment.
Mobbdeeprob - thanks for the comments! To answer the question: it will obviously be of most benefit to those that can't come round and see the colleges. Indeed we say in the introduction that this should only be the first resort rather than the one and only - ideally, it should guide people as to what colleges they like the look of such that they know which ones they should look round when they come for a visit! But there's a lot of information in here that applicants will be hard pushed to find by other means. If the food's not up to scratch, we'll say so. (Christ Church!) If the college website only has photos of their plush third-year in-college accommodation, we'll tell you about the manky halls down the road. (Magdalen!) If the college only lets visitors in as far as its beautiful front quad, we'll tell you about the concrete blocks hidden behind the "College Members Only" signs. (Teddy Hall!)