Virgin Vapor does dilute their juice so it's not as thick as you may expect from all VG. Their samples are also always mixed at 150% the "standard" flavor, and VG does mute flavor a bit. I'd try a sample from their site, and if that's better then you can order full sizes at extra strength. For me almost all of their juices really improve with a week or two of steeping, and some of them don't get super delicious until they're nearly a month old. Maybe just set it aside for now and try it later, see if it's gotten better.
I could swear I've heard that often flavors takes longer to mature in a high VG mix, but I haven't yet graduated to DIY so maybe one of the vets can chime in and let me know if I'm just making up lies. Either way, I always give a juice a few weeks before I decide I hate it.