@InescapableDeath it really depends on the speed the solicitors work at and how bothered the buyers/sellers are.
There appears to have been no issues with the survey on my house, yet it's taken almost 8 weeks for us to find that out as the buyer kept saying they'd sent the enquiries to the solicitor and the solicitor kept lying about sending them on. He eventually did and there doesn't seem to be anything for us to deal with.
On he other hand, our survey for our purchase was horrendous (all 3s) and we managed to sort it out within a few days between us, them and the estate agent.
We've been waiting for completion for at least 2 months now and only slightly further forward. We need plenty of notice to pack as we work long hours and can't get any time off work. We daren't start though as it would all have to be unpacked if we have to go back on the market. It's so worrying not having confirmation of dates and no word on exchanging before completion date which we've asked for several times.