I always check in online and - with most airlines - relish the thought of simply going to the "baggage drop" and get rid of my suitcase. Quick, simple. A no brainer.
However, when I recently flew KLM out of MAN, I was astonished to find out that their "baggage drop" takes 25 minutes (at least, that is how long I had to queue until I got to the baggage drop desk).
The system is completely

, as everyone is made to check in at one of the "self service kiosks" (if they haven't checked in online, that is). So all pax end up in the baggage drop queue which, on the day I departed, had only two desks open for all KLM and AF flights. A total nightmare.
I should add that almost all transit pax through AMS or CDG were, of course, being processed with the obvious document checks etc. The baggage drop line has become the new check in queue in terms of waiting time.