We operate a CLC system, with ACARS loadsheets, but we
always have a copy before push back on the flight deck, and do the LMC's the old fashioned manual way. Very rarely does it cause a delay, and keeps ATC and other carriers happy too.
IMHO, I used to be dead set against the CLC operation, but once I had become used to working with it, I realised there is an extra level of safety by using that set up, which is obviously a good thing with an extra set of eyes who also knows exactly what should be loaded and where, able to check the info on the loadsheet that the f/deck crew would never know was incorrect.
