Rythm carts work! Should be 6 stars just for product that works but..I switched to carts about 8 months ago.. There was a very hard transition to find ones that actually work. Rythm carts actually taste like different strains of weed and will also get you medicated. The positives end there. While other .5 carts will last over a week, Rythm 1g carts will last 3 to 4 days at best. You can almost watch the liquid which is very thin, suck away as you vape. Also their carts are never ever ever full. NEVER!!! They claim that 30% is "inside".. but no other cart is half empty when you open the box. As for now I WILL NOT buy another one until I notice they are giving us a full cart. Rythm could be one of the best companies out there but in my opinion they're losing customers. FILL YOUR CARTS!!