In usual manner Amazon faster it was the next day already there. Even the reattachment was smooth again. But you should clean the camera screen before with a lint-free cloth reasonable. On the 50D screen protector is absolutely properly matching and unobtrusive.
The first Delamax screen guard had in all that time no problems with ingress of dust or water spray - so I think it will be this time as well.
As here already written one naturally comes with the nose on the display - the deposits are slightly worse to clean than the original display of the 50D - a microfiber cloth creates with me but without any problems.
Strong buy recommendation - also against the cheaper screen films which have my display certainly not as well protected.