In my experience, purchasing the subscription through iSubscribe offered no advantage over going direct - I thought I would get cashback via Quidco but iSubscribe declined with no reason given. Purchasing through iSubscribe also resulted in a very poor experience overall. I purchased an online subscription and had to chase the magazine to check the order had been received as there was no welcome / communication or notification from them, suggesting a process or communication failure between them and iSubscribe. When I made contact I found my subscription had started several days earlier - not good.