I'm in Co. Cavan mate, about 90 mins from Dublin. In comparison to my native Prestwich it is really in the middle of nowhere.
Post from the UK goes from Dublin to Dundalk to Carrickmacross to my village and eventually to my door.
I ordered last year's home shirt for my dad last Monday and it arrived last Friday. So if my pre-ordered shirt hadn't arrived today I would have had a glimmer of hope for it to come tomorrow based on my dad's shirt order. But I have been waiting almost 2 weeks for a small package to arrive (not from MCFC, from eBay).
So from my experience here if I order from UK then it could be anywhere from 3 days to 3 weeks.
Having said that I ordered an item from a store in Wisconsin, in the States a couple of weeks ago and it arrived in my post box in 4 days.
I have to say I am well impressed with City for getting this pre-order to me on launch day.
I have read a few complaints but in general I'm guessing that since KitBag took over the online shop it has made them very efficient.