Might be UK Cent only. You get both vouchers (actually cards). Valid until July 2011 (travel before then).
Hotel for all hotels except Manoir in Oxford. No minimum spend. Book through Concierge. There may be blackout periods. But basically it amounts to about 50-100% off one nights stay at one of the hotels.
Train voucher for overnight trip on Venice-Simplon, Eastern & Orient Express, Royal Scotsman and published Afloat in France trips. Pullman and Bell not included. So about 20% off two-person London-Venice, 15% off two-person Highland 2-day journey or 24% off two-person Singapore-Bangkok.