Originally Posted by
Aviatrix
Not something I would recommend. I don't know how DB gets its UK data, but I do know that it isn't live data - it's the equivalent of a printed timetable and is not always up to date.
For up-to-date information I would always use the operating company's site.
When I got delayed on the way to Bournemouth a few months ago DB had a better idea of what was going on (signalling problems around Reading) than Nationalrail did.
I don't know why you're so obsessed with first class ToGo, second is perfectly fine on most trains. Admittedly Dresden-Prague is a long enough journey that i'd think about paying the extra for first but i'd have no qualms about travelling in second.