yeah you can absolutely trust them (seetickets), and they are good in that they stock tickets a lot of other places don't. but if you're planning on say, travelling for a week before a gig and not returning home first, don't go there. so many people had problems with reading/leeds tickets this year because a lot of them didn't turn up til 5/6 days before.
but anything is better than ticketmaster, haha. especially since now it's near impossible to get the damn tickets delivered when you'll actually be there to get them. grr.