just had day sampling the new Chiltern Mainline services,sampled the Mk3 Silver Service and the 16.30pm unit non stop Marylebone to Warwick Parkway,we did Warwick Parkway in just under 68 mins,and 50 mins to Banbury on Silver Service,all trains been punctual,the staff been friendly,no over crowding,and it is definitely quick,but would say quite a lot of the way u can't tell it been upgraded in terms of track works unlike Trent Valley and Rugby etc,think it cost 250,000,000,and it competes well with Virgin Bendy trains,the Mk3 are great to ride on,good refurbishment,I'm impressed with Chiltern based on today,how have others found Chiltern to be?