Nature was of course the most fascinating feature of Scotland. From Loch Lomond to Glencoe the road was very scenic. Moors, tiny frozen waterfalls, creeks coming down from the glens, and sheep everywhere. Overall it's very rural with plenty of space. You can drive for hours with seeing just one or two small villages.
People are friendly and social live centers around pubs.
I missed the Scottish bitter and ale. Not to be missed was Loch Ness. Urquhart Castle is a good spot to go camera hunting for her. We were too late for the official Loch Ness Monster Exhibition Center as we were fooled into some unofficial Nessie museum just before closing time. From here it's just a short drive to Inverness, the capital of the Highlands.