I like that you can book train journeys with just one click, it's easy! There are so many options for choosing your journey which makes booking very simple but also gives me lots more information about my chosen route than if i was looking at individual pages online or in other apps/websites etc - all this info helps make sure we choose wisely when planning our trips out into Europe as well making us feel less nervous knowing there will be someone helping along side who knows what they're doing!! Nothing really apart from being able to easily find routes between 2 points using their website (or app) rather then having loads around town trying different websites before finding something suitable- saving time & money too ;).