1) Why is the logo placed on the right. As i think its a standard practice nowadays to have it on the left. The only reason i could think of is to give more white space around booking. Or making it stand out. I still think the standard logo is on the left or center in rare cases.

2) Font to background contrasts are troubling. How did you find your tests against Old users and people with colour disability?

Wonder who designed http://www.nationalexpress.com/ it is the best and the simplest system out there along with LondonMidland.com

As with any new design, there are always things which can be improved, and it is our understanding that National Express, keen to provide the best possible user experience to customers, will be "fine tuning" the behaviour and performance of the system (back-end and front-end) over the course of the next 6-12 months.

Regarding error messages: Flow developed a standard approach and language for handling error messages. But the error messages are written and updated by National Express. So please let us know which ones you found confusing and we'll pass that information on to them. Mail them to phil at flow hyphen interactive.com, please.

Regarding speed: We agree, the service can sometimes be a bit slow. It's a result of the connection to the 20+ year old National Rail database which supports the entire rail network - not just National Express. We might have to resort to campaigning to get the whole national system upgraded!

I like many features of the booking engine, but....

It works kind of slow... I'm on a pretty fast connection.

I'm also a bit confused on your error messages.