Someone mentioned Sensi Mart carts to me recently, so ordered some around 1pm yesterday, and they arrived 10:30am today. Super fast! I got a GG4 and a Rainbow Belts.
Started on the GG4 this morning - lovely weedy smell when you open the little container. I had 2 good drags on the vape - nice authentic taste (some vape carts just taste like sweets), tastes like the smell of good hash. Within 5 minutes I could feel a heaviness in my eyelids and the tension relax from my shoulders, and a nice warm cozy feeling. I thought it was going to be a proper couch-locker, but within 15 minutes the high started properly, and I started to get the zingy alert and high feeling you usually get from a sativa, but still had the heavy stone of an indica. It's pretty mad - don't think I've ever had a hybrid where you can really feel both kinds of high simultaneously. It was at this point that I realised that the GG4 vape carts are pretty fucking strong. High lasted 2 hours or so. I'll give the Rainbow belts a review tomorrow, as I doubt I'll be able to tell exactly what the buzz is like with GG4 still rolling around my system.
Overall GG4 gets 12/10. Best vape cart I've tried from Little Biggy, and that includes the more expensive ones. It's really strong and a really, really good high.