I've had it sent to my boyfriends work, that way at least there's someone in. It does seem to be very different depending on where you are, some city link depots are very good some less so but I know a few people who run businesses who refuse to order via city link which didn't increase my confidence in them bucket loads. I think one of our issues stemmed mostly from the snow but then the tracking wasn't updating and we couldn't get through to them etc. The other recent issue was with our TV, as our buzzer doesn't work we expected them to call as they'd asked for a number but they didn't then Dom went to pick it up but they didn't actually have it. The driver who finally got it to us was very nice but the first one to try didn't even leave a card!
EDIT: Though noticing your location you might have the same depot as me the 'Edinburgh' *cough* Livingston *cough* one. We'll see, good luck
If you're in the first time they attempt delivery you should be fine the problems mostly seem to start if you miss it...