Will try to.
Scottish blind bidding system is pants for buyers, there's no discussion or negotiation. Other half is constantly saying that houses are going above value, but clearly everyone but us (and maybe a couple below) value the house as more, then moans about not getting a house we fallen for.
it depends totally on the seller
for example my mate just bought in the exact same estate as me.
my house IMO was undervalued at the time. it was valued at £5K less than what I paid for it yet the seller wanted £7.5K above valuation. I really wanted the home and I said I can't do the £7.5K more but I can do £5K more than the valuation. He shook my hand and said I'll need to speak to the other half but I'm 99% sure that is fine. I spoke to him face to face on the showing day and we kept the lawyers and estate agents out of it.
We then got it for IMO the correct value. I didn't think the valuation was correct as the same house - in a worse state had sold for the valuation price. Yet it never had a full landscaped garden neither had it been modified to make an open plan kitchen and dining room yet left as default. Plus my attic was fully floored and the kitchen and en suite in much better condition, etc. I think all of that was at least worth £5K more. Subsequently my home has increased in value by around 15% in 3 years.
Yet my mate who just bought in the same estate just spent £31K over the valuation price. She wanted £45K more than the valuation and has been a nightmare since the start. She has also subsequently left the house in a worse state than when they viewed it. She removed things and then got a painter to do patch up jobs not using the same paint so the walls look "dirty" / messy.
She has also left a lot of holes in walls or screws sticking out and wall plugs, etc. He on the closing day had the winning bid by a long margin apparently. Yet she still wanted more money. He ended up giving her £500 more and she said she would leave the fridge freezer for doing so. She then tried to sell him the sofa for £2K, tv's and leave more holes in walls, etc.
I have yet to see a house sell for below or near it's valuation in decent areas tbh. In crap areas yes. But in places people want to live in; houses sell for 10-25% above the valuation.