It's on premises. There's a couple of things included I don't need, the interior and engine bay. Both are literally like new, see below.
From their own marketing
"Scotland's specialist car detailer, he has worked on some of the worlds most expensive vehicles including the likes of Steve Mcqueen's 1963 Ferrari 250 GT Lusso worth £5m, Jay Kay's La Ferrari worth £1m and a Ferrari 275 worth £2.6m. "
and
"Authorised Swissvax Detailer, Authorised Gtechniq Detailer and an Xpel Authorised Installer, which involved in depth training. Being an Authorised Gtechniq Detailer allows Spotless to offer up to 7 years warranty on Gtechinq details also offering 10 years warranty on all Xpel paint protection film installs. "
I know that doesn't guarantee anything but it perhaps implies why they charge what they do. Plenty of positive feedback on their site and facebook page. One of the problems I have is that there aren't many detailers up in Inverness which aren't mobile as far as I can find. Most are based in Aberdeen/Glasgow/Edinburgh, all at least 2.5 hours away.