It feels like a step back to an Italian winery when you walk into Mondo Vino. It has a neighborhood feel of the local wine shop and the bottles are displayed artistically, conveniently and they induce browsing! The staff knows all there is to know about wines and on the chance that you are just running in for a specific bottle (and therefore not in a browsing mode) they can locate it for you quickly and have you on your way in no time at all.
If that is the case, however, then you must promise yourself to come back when you have more time to poke around, or you'll be missing a delightful Highlands experience. Ask the staff for their recommendations; they'll be glad to share and you'll be able to try something new with confidence.