Well it seems it depends on what you want.
I ordered a custom case back in April, Haven't heard a thing about about start date or seen a sketch. Last I was told is that Marcel was trying to get John to complete the sketch.
I ordered another case in June, a fairly standard case, not much customization. Was contacted within a few days, received a sketch within a few days of payment and was told to expect completion within 11 weeks. Just got a photo of the case in progress and was told they were hoping to complete the case by the end of August.
So the short answer is it depends on what you want it seems.