Given the choice, I won't use couriers. Mainly on principal, I like to support our national (now partly privatised) Royal Mail service. Incoming mail I don't usually have the choice (I'm not sending), but outgoing I do. By choice I certainly wouldn't use Evri or Yodel under any circumstances. RM has always been good for me without exception in all cases over many years. All the couriers have given trouble at one time or another. As stated above, there are many options with RM, don't take the 1st offer as the best.