We had ours done in Edinburgh. Admin staff, nurses & Dr all fab!
Both my partner & myself had to give 2nd urine samples due to small traces of protein, think we must've been bit dehydrated, & those were fine. Glad they give the option of 2nd test, I'm guessing that must be quite a common result. All other tests were the same as what you described except no stripping (phew, as didn't exactly have glam undies on) & instead of rubber hammer she just done resistance tests (push/pull limbs).
My 5 month old just had a general check over, no bloods or x-rays. The Dr even very kindly changed his nappy!!
They wrote to us within the week telling us tests had been signed off & submitted.
Overall we were there for 2 hours. It is a lot of money, especially for a baby to have essentially the same checks his Health Visitor does, but hey ho that's it all done.
Defo nowhere near as scary as I thought it'd be & as I said the whole team there were lovely which makes it all so much easier.