Not for 9/10 years - and with hindsight we unpacked. It took them a day to pack and they loaded most stuff except for half the boxes: the beds we used, a couple of sofas and the TV, and a few other essential bits, onto van one, van two came back first thing the following morning. It was about £2500 I think from memory (large house and many many books). Realistically it was a two day move with packing.
If properties are more or less empty at 8am on moving day, it facilitates professional cleaners coming in and I insist that's written into the contract.
Tips: essential documents including passports packed separately and kept with you.
Kettle, mugs, bottles of water, bog roll, hoover, bucket, cloths, flash, wipes, packed into boot, in advance.
Put clean bedding on beds the day before packing starts. Bed linen for each bed packed into a box left on the bed and clearly labelled. This box finds its way to the correct bed in the new house.
Book cats/dogs into boarding kennels two days before the move and for two/three days afterwards.
If it's a big move, consider booking an hotel for the night of move in day.