I was not allowed to respond officially on behalf of purecigs.com before getting my "registered supplier" status on the forum. Having received it, feel free to post or pm any questions you may have.
My knowledge of blu is limited to the product itself. My experience with them was in their early days, before I became a vendor myself, they had gotten ahold of my cellphone number and a telemarket woke me daily for 3 weeks trying to sell me a "free trial". So, yea, I have no personal experience dealing with them.
Regarding my own customer service, I have been answering customers and shipping orders within 24 hours and hope to continue meeting that goal. All orders are flat rate $5, free over $50, and ship priority mail with delivery confirmation.
Regarding the product itself, somebody in this thread had called ours a "super mini" like blu's. It is not. Blu's cigs are 88mm (~3.46") long with 90mAH battery capacity, while ours is 109mm (~4.29") long with 220mAH capacity. Some might find the smaller size convenient, but that battery capacity is far from convenient. Ours is comparable to a 100 size cigarette. Given the popularity of other ecigs of this size, most people do not mind this.
Likewise, our portable charger pack also has a larger capacity. It is also a "smart" pack with a LCD battery indicator on the front. Imagine walking around with a cellphone that you never know whether its fully charged or about to die, and you can see why this is a useful feature. It also has a built in LED flashlight. Our pack does not have the problems blu's has. (1. if you leave a battery in the blu pack after it is charged, it will then drain itself. They try to claim this is a safety feature. 2. it will often light up indicating that it is charging, and yet not even charge the battery.)
Also, blu only offers their batteries in black and white color. Ours comes in blue, red, and black. I don't even like the color red, but I personally love these red batteries the best.
At this time we carry the flavors Tobacco, Menthol, Cherry, 555, RY4(risque), Watermelon, Blueberry, Apple, and Vanilla.