I'd concur with Tasha that this is the One Shop sibling to be avoided, they still offer a good service and can get you very cheap train, bus and excursion tickets, but everything is lot slower and more restricted here.
I came in to buy a weekly saver bus ticket and ended up queueing for 45 minute before finally being served. The lady who served me was a female Grinch, of that I am sure.
Still, if you need to get a discount train ticket at last minute, this is definitely the ideal place (after Old Steine). read more