One of our local tips has had the appointment system for a number of years now, even before Covid, and it works great. Previously you would have to queue for ages, sometimes around half an hour, even longer at weekends! Now you can just book your appointment, call in at the allotted time, go straight in, dump your stuff and leave.
The other tip, no appointment necessary, but very rarely is there a queue, is a few miles further in the opposite direction but the lads there help you unload & carry your stuff to the skips, all done with a smile. Guess where I go?