I went to Henderson for scans at 8 weeks, 12 weeks and 41 weeks

but had the 20 week one elsewhere.
I found them to be really great for all scans (especially after the less than great service I had for the anatomy scan....but I digress

). I think it was different people each time, but all of them were lovely and helpful, and explained things to us wthout dumbing it down or being condescending.
And as an aside - alot of westies around