OK here is the deal. Amex give you the first year free worth £75. After spending £1K in the first three months they give you 15000 SPG Points which can buy upto 5 free nights in a SPG Group (Sheraton, Four Points etc) Hotel. Best bit is if you sign up through Quidco they give you £45 cash back so you get:
5 Free nights and £45 for nothing
Hope it helps someone.